Subclasses list- 1 Sulfur containing hetero ring (e.g., thiiranes, etc.)
Patents: 65 Patent Applications: 6 - 2 With preservative or stabilizer
Patents: 12 Patent Applications: 3 - 3 Heavy metal or aluminum containing
Patents: 179 Patent Applications: 77 - 4 Boron or silicon containing
Patents: 181 Patent Applications: 77 - 5 Phosphorus attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 87 Patent Applications: 13 - 6 The hetero ring is five-membered
Patents: 215 Patent Applications: 35 - 7 Plural ring hetero atoms in the hetero ring
Patents: 32 Patent Applications: 2 - 8 Four chalcogens bonded directly to the same phosphorus
Patents: 24 Patent Applications: 4 - 9 The hetero ring has at least seven members
Patents: 136 Patent Applications: 12 - 10 Plural ring hetero atoms in the hetero ring
Patents: 73 Patent Applications: 15 - 11 Plural ring sulfurs in the hetero ring
Patents: 97 Patent Applications: 13 - 12 Polycyclo ring system having at least three cyclos and having the hetero ring as one of the cyclos
Patents: 115 Patent Applications: 31 - 13 The hetero ring is six-membered
Patents: 291 Patent Applications: 25 - 14 Plural ring hetero atoms in the hetero ring
Patents: 141 Patent Applications: 21 - 15 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 100 Patent Applications: 23 - 16 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 66 Patent Applications: 17 - 17 Plural ring sulfurs in the hetero ring
Patents: 41 Patent Applications: 10 - 18 Three or more ring hetero atoms in the hetero ring
Patents: 19 Patent Applications: 1 - 19 Plural ring sulfurs in the hetero ring
Patents: 27 Patent Applications: 3 - 20 Two ring sulfurs in the hetero ring
Patents: 69 Patent Applications: 8 - 21 Chalcogen or nitrogen attached directly to the hetero ring by nonionic bonding
Patents: 98 Patent Applications: 3 - 22 Chalcogen or nitrogen attached indirectly to the hetero ring by nonionic bonding
Patents: 148 Patent Applications: 11 - 23 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 363 Patent Applications: 86 - 24 The polycyclo ring system has at least four cyclos
Patents: 41 Patent Applications: 9 - 25 Chalcogen attached directly to the hetero ring by nonionic bonding
Patents: 29 Patent Applications: 7 - 26 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 97 Patent Applications: 23 - 27 Chalcogen attached directly to the hetero ring by nonionic bonding
Patents: 104 Patent Applications: 28 - 28 Chalcogen or nitrogen attached directly to the hetero ring by nonionic bonding
Patents: 232 Patent Applications: 54 - 29 The hetero ring is five-membered
Patents: 209 Patent Applications: 28 - 30 Plural ring hetero atoms in the hetero ring
Patents: 141 Patent Applications: 16 - 31 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 72 Patent Applications: 20 - 32 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 91 Patent Applications: 10 - 33 Chalcogen attached directly to the hetero ring by nonionic bonding
Patents: 62 Patent Applications: 8 - 34 Three or more ring hetero atoms in the hetero ring
Patents: 34 Patent Applications: 1 - 35 Two ring sulfurs in the hetero ring
Patents: 83 Patent Applications: 12 - 36 Chalcogen bonded directly to ring carbon of the hetero ring
Patents: 41 Patent Applications: 8 - 37 Nitrogen or chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 43 Patent Applications: 10 - 38 Nitrogen attached directly to the hetero ring by nonionic bonding
Patents: 52 Patent Applications: 1 - 39 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 203 Patent Applications: 59 - 40 Chalcogen attached directly to ring sulfur of the hetero ring by nonionic bonding
Patents: 37 Patent Applications: 5 - 41 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 53 Patent Applications: 50 - 42 Tetracyclo ring system having the hetero ring as one of the cyclos
Patents: 44 Patent Applications: 41 - 43 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 137 Patent Applications: 115 - 44 Chalcogen attached directly to the tricyclo ring system by nonionic bonding
Patents: 74 Patent Applications: 17 - 45 Chalcogen attached directly to the hetero ring by nonionic bonding
Patents: 35 Patent Applications: 4 - 46 Chalcogen attached directly to ring sulfur of the hetero ring by nonionic bonding
Patents: 35 Patent Applications: 8 - 47 Halogen attached directly to the tricyclo ring system by nonionic bonding
Patents: 15 Patent Applications: 0 - 48 Nitrogen attached directly or indirectly to the tricyclo ring system by nonionic bonding
Patents: 61 Patent Applications: 7 - 49 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 199 Patent Applications: 75 - 50 Plural ring hetero atoms in the bicyclo ring system
Patents: 104 Patent Applications: 65 - 51 Chalcogen attached directly to the bicyclo ring system by nonionic bonding
Patents: 245 Patent Applications: 25 - 52 Chalcogen attached directly to the hetero ring by nonionic bonding
Patents: 120 Patent Applications: 10 - 53 Chalcogen attached directly to ring sulfur of the hetero ring by nonionic bonding
Patents: 89 Patent Applications: 19 - 54 Plural chalcogens bonded directly to the bicyclo ring system
Patents: 78 Patent Applications: 4 - 55 Nitrogen attached directly or indirectly to the bicyclo ring system by nonionic bonding
Patents: 125 Patent Applications: 28 - 56 Halogen attached directly or indirectly to the bicyclo ring system by nonionic bonding
Patents: 52 Patent Applications: 1 - 57 Nitrogen or a -C(=X)- group, wherein X is chalcogen, attached directly to the bicyclo ring system by nonionic bonding
Patents: 289 Patent Applications: 83 - 58 Chalcogen attached indirectly to the bicyclo ring system by nonionic bonding
Patents: 388 Patent Applications: 83 - 59 Additional hetero ring containing
Patents: 431 Patent Applications: 170 - 60 Ring oxygen in the additional hetero ring
Patents: 748 Patent Applications: 123 - 61 Cyano bonded directly to the hetero ring
Patents: 143 Patent Applications: 23 - 62 Chalcogen bonded directly to ring carbon of the hetero ring
Patents: 211 Patent Applications: 29 - 63 Nitrogen attached directly to the hetero ring by nonionic bonding
Patents: 139 Patent Applications: 15 - 64 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
Patents: 147 Patent Applications: 22 - 65 Nitrogen attached indirectly to the hetero ring by nonionic bonding
Patents: 374 Patent Applications: 58 - 66 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 207 Patent Applications: 17 - 67 Chalcogen attached directly to ring sulfur of the hetero ring by nonionic bonding
Patents: 24 Patent Applications: 1 - 68 Nitrogen attached directly to the hetero ring by nonionic bonding
Patents: 293 Patent Applications: 49 - 69 Having -C(=X)-, wherein X is chalcogen, bonded directly to the nitrogen
Patents: 162 Patent Applications: 54 - 70 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
Patents: 188 Patent Applications: 15 - 71 The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
Patents: 223 Patent Applications: 63 - 72 Nitrogen or chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 354 Patent Applications: 88 - 73 Halogen attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 68 Patent Applications: 6 - 74 Nitrogen attached indirectly to the hetero ring by nonionic bonding
Patents: 278 Patent Applications: 37 - 75 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 311 Patent Applications: 79 - 76 The chalcogen, X, is in a -C(=X)- group
Patents: 294 Patent Applications: 135 - 77 Unsaturated carbocyclic ring or acyclic carbon to carbon unsaturation containing
Patents: 429 Patent Applications: 97 - 78 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 313 Patent Applications: 64 - 79 The chalcogen, X, is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
Patents: 356 Patent Applications: 43 - 80 Unsaturated carbocyclic ring or acyclic carbon to carbon unsaturation containing
Patents: 110 Patent Applications: 29 - 81 Halogen attached directly to the hetero ring by nonionic bonding
Patents: 38 Patent Applications: 7 - 82 Three or more halogens attached directly to the hetero ring by nonionic bonding
Patents: 8 Patent Applications: 1 - 83 The compound consists of the ring sulfur, carbon, and hydrogen
Patents: 59 Patent Applications: 5 - 84 Process of forming the hetero ring from acyclic reactants only
Patents: 5 Patent Applications: 0 - 85 Metal containing catalyst utilized
Patents: 5 Patent Applications: 0 - 86 Process of alkylating the hetero ring
Patents: 10 Patent Applications: 3 - 87 Plural chalcogens double bonded directly to ring sulfur of the hetero ring
Patents: 24 Patent Applications: 4 - 88 The hetero ring is four-membered
Patents: 57 Patent Applications: 10 - 89 Plural ring hetero atoms in the hetero ring
Patents: 30 Patent Applications: 4 - 90 The hetero ring is three-membered and has chalcogen or nitrogen attached directly or indirectly thereto by nonionic bonding
Patents: 52 Patent Applications: 13 - 200 Oxygen containing hetero ring (e.g., dioxirane, etc.)
Patents: 120 Patent Applications: 10 - 201 With preservative or stabilizer
Patents: 19 Patent Applications: 0 - 202 Oxirane containing compound with preservative or stabilizer
Patents: 15 Patent Applications: 2 - 203 Cyclic anhydride containing compound with preservative or stabilizer
Patents: 15 Patent Applications: 0 - 204 Lactone containing compound with preservative or stabilizer
Patents: 4 Patent Applications: 1 - 205 Compound in which the hetero ring is five-membered with preservative or stabilizer
Patents: 9 Patent Applications: 3 - 206 Heavy metal or aluminum containing
Patents: 139 Patent Applications: 37 - 207 Arsenic containing
Patents: 16 Patent Applications: 7 - 208 The hetero ring has three members or at least seven members
Patents: 39 Patent Applications: 9 - 209 The metal is bonded directly to carbon, which carbon is a ring carbon of the hetero ring or which carbon is attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 42 Patent Applications: 24 - 210 The metal is bonded directly to chalcogen, which chalcogen is attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 87 Patent Applications: 19 - 211 The chalcogen, X, is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
Patents: 25 Patent Applications: 2 - 212 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 39 Patent Applications: 19 - 213 Boron containing
Patents: 99 Patent Applications: 33 - 214 Silicon containing
Patents: 641 Patent Applications: 93 - 215 Oxirane ring containing
Patents: 211 Patent Applications: 51 - 216 Phosphorus bonded directly to the hetero ring
Patents: 61 Patent Applications: 20 - 217 Oxirane ring containing
Patents: 15 Patent Applications: 7 - 218 Phosphorus attached indirectly to the hetero ring by nonionic bonding
Patents: 209 Patent Applications: 33 - 219 Oxirane ring containing
Patents: 31 Patent Applications: 10 - 220 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 225 Patent Applications: 85 - 221 Plural ring oxygens in the hetero ring
Patents: 111 Patent Applications: 6 - 222 Chalcogen bonded directly to the hetero ring
Patents: 127 Patent Applications: 20 - 223 Xanthene ring system having a benzene ring bonded directly thereto para to the xanthene ring oxygen, wherein the carbon of a -COO- group is bonded directly to the benzene ring ortho to its position of attachment to the xanthene ring system, and spirolactone derivatives thereof (e.g., fluoresceins, chlorofluorans, etc.)
Patents: 141 Patent Applications: 37 - 224 The xanthene ring system is three cyclos of a polycyclo ring system having at least four rings (e.g., benz(c)fluorans, etc.)
Patents: 64 Patent Applications: 12 - 225 Nitrogen bonded directly to the xanthene ring system (e.g., rhodols, aminofluorans, etc.)
Patents: 54 Patent Applications: 17 - 226 Plural nitrogens bonded directly to the xanthene ring system (e.g., 2,6 diaminofluorans, etc.)
Patents: 79 Patent Applications: 13 - 227 Rhodamines
Patents: 100 Patent Applications: 16 - 228 The hetero ring contains -O-C(=X)-O- as part of its structure, wherein X is chalcogen (e.g., cyclic carbonates, etc.)
Patents: 107 Patent Applications: 16 - 229 The hetero ring is five-membered
Patents: 206 Patent Applications: 45 - 230 The five-membered hetero ring, except for the =X to the ring, is unsubstituted or hydrocarbyl substituted only
Patents: 130 Patent Applications: 25 - 231 Cyclic anhydrides (i.e., -C(=X)OC(=X)-, wherein the X's are the same or diverse chalcogens, is part of the hetero ring)
Patents: 67 Patent Applications: 5 - 232 The cyclic anhydride has at least six members and is a cyclo in a polycyclo ring system
Patents: 61 Patent Applications: 14 - 233 The cyclic anhydride is five-membered (e.g., succinic anhydride, etc.)
Patents: 81 Patent Applications: 6 - 234 Polycyclo ring system having the cyclic anhydride as one of the cyclos
Patents: 48 Patent Applications: 4 - 235 Tetracyclo ring system having the cyclic anhydride as one of the cyclos
Patents: 27 Patent Applications: 3 - 236 Tricyclo ring system having the cyclic anhydride as one of the cyclos
Patents: 41 Patent Applications: 4 - 237 Two of the cyclos share at least three ring members (i.e., bridged)
Patents: 27 Patent Applications: 3 - 238 Halogen bonded directly to the tricyclo ring system
Patents: 2 Patent Applications: 0 - 239 Plural ring oxygens in the tricyclo ring system
Patents: 66 Patent Applications: 6 - 240 Bicyclo ring system having the cyclic anhydride as one of the cyclos
Patents: 63 Patent Applications: 9 - 241 Plural bicyclo ring systems each having the cyclic anhydride as one of the cyclos
Patents: 120 Patent Applications: 13 - 242 Having -C(=X)-, wherein X is chalcogen, bonded directly to at least one of the bicyclo ring systems
Patents: 29 Patent Applications: 7 - 243 Nitrogen or additional chalcogen bonded directly to the bicyclo ring system
Patents: 53 Patent Applications: 4 - 244 Having -C(=X)-, wherein X is chalcogen, bonded directly to the bicyclo ring system
Patents: 16 Patent Applications: 4 - 245 The -C(=X)- is part of a -C(=X)XH group, wherein the X's are the same or diverse chalcogens, or salt thereof (e.g., trimellitic anhydride, etc.)
Patents: 51 Patent Applications: 2 - 246 Halogen bonded directly to the bicyclo ring system
Patents: 45 Patent Applications: 1 - 247 Phthalic anhydride per se
Patents: 50 Patent Applications: 8 - 248 Preparing by oxidation
Patents: 120 Patent Applications: 30 - 249 Fluidized catalyst
Patents: 38 Patent Applications: 9 - 250 Purification or recovery
Patents: 59 Patent Applications: 3 - 251 By chemical reaction of impurity in presence of added chemical substance
Patents: 16 Patent Applications: 0 - 252 Plural hetero rings
Patents: 56 Patent Applications: 5 - 253 Nitrogen or additional chalcogen attached directly or indirectly to the cyclic anhydride by nonionic bonding
Patents: 67 Patent Applications: 7 - 254 Halogen attached directly or indirectly to the cyclic anhydride by nonionic bonding
Patents: 20 Patent Applications: 0 - 255 Acyclic carbon chain containing carbon to carbon unsaturation bonded directly to the cyclic anhydride
Patents: 72 Patent Applications: 5 - 256 Preparing by oxidation
Patents: 49 Patent Applications: 9 - 257 Of benzene or hydrocarbyl substituted benzene
Patents: 79 Patent Applications: 5 - 258 Of acyclic or alicyclic hydrocarbon
Patents: 91 Patent Applications: 7 - 259 Vanadium and phosphorus, in compound or elemental form, utilized
Patents: 201 Patent Applications: 13 - 260 Additional heavy metal, other than titanium, utilized
Patents: 152 Patent Applications: 3 - 261 Double bond between ring members of the cyclic anhydride
Patents: 25 Patent Applications: 2 - 262 Maleic anhydride per se
Patents: 98 Patent Applications: 16 - 263 Lactones (i.e., -C(=X)O-, wherein X is chalcogen, is part of the hetero ring)
Patents: 110 Patent Applications: 36 - 264 Spiro
Patents: 224 Patent Applications: 10 - 265 The spiro includes the lactone ring
Patents: 164 Patent Applications: 47 - 266 The lactone ring has at least seven members
Patents: 141 Patent Applications: 33 - 267 Plural ring oxygens in the lactone ring
Patents: 150 Patent Applications: 37 - 268 Polycyclo ring system having the lactone ring as one of the cyclos
Patents: 82 Patent Applications: 22 - 269 Bicyclo ring system having the lactone ring as one of the cyclos
Patents: 56 Patent Applications: 8 - 270 Additional acyclic chalcogen bonded directly to the lactone ring (e.g., zearalanone, etc.)
Patents: 68 Patent Applications: 7 - 271 Additional chalcogen attached directly or indirectly to the lactone ring by nonionic bonding
Patents: 109 Patent Applications: 28 - 272 Preparing from a cyclic ketone (i.e., a ketone where the carbonyl is part of a ring)
Patents: 35 Patent Applications: 5 - 273 The lactone ring is six-membered
Patents: 153 Patent Applications: 16 - 274 Plural ring oxygens in the lactone ring
Patents: 184 Patent Applications: 30 - 275 Polycyclo ring system having the lactone ring as one of the cyclos
Patents: 27 Patent Applications: 20 - 276 Tetracyclo ring system having the lactone ring as one of the cyclos
Patents: 22 Patent Applications: 10 - 277 The tetracyclo ring system consists of four six-membered cyclos
Patents: 25 Patent Applications: 4 - 278 At least two additional chalcogens bonded directly to the tetracyclo ring system
Patents: 19 Patent Applications: 12 - 279 Ring oxygen bonded directly to ring carbon which is a member of two cyclos in the tetracyclo ring system
Patents: 11 Patent Applications: 6 - 280 Tricyclo ring system having the lactone ring as one of the cyclos
Patents: 82 Patent Applications: 20 - 281 Two of the cyclos share at least three ring members or ring carbon is shared by the three cyclos (e.g., bridged or peri compounds, etc.)
Patents: 38 Patent Applications: 2 - 282 Plural ring oxygens in the tricyclo ring system
Patents: 106 Patent Applications: 10 - 283 Bicyclo ring system having the lactone ring as one of the cyclos
Patents: 144 Patent Applications: 48 - 284 Plural bicyclo ring systems each having the lactone ring as one of the cyclos
Patents: 21 Patent Applications: 10 - 285 Additional acyclic chalcogen bonded directly to the lactone ring
Patents: 139 Patent Applications: 22 - 286 Benzene ring and the lactone ring bonded directly to the same acyclic carbon
Patents: 19 Patent Applications: 3 - 287 Acyclic -C(=X)-, wherein X is chalcogen, bonded directly to the lactone ring
Patents: 50 Patent Applications: 14 - 288 Nitrogen bonded directly to the bicyclo ring system
Patents: 87 Patent Applications: 15 - 289 The other cyclo of the bicyclo ring system is a six-membered carbocyclic ring to which chalcogen is directly attached
Patents: 134 Patent Applications: 33 - 290 The bicyclo lactone consists of two six-membered rings and is unsubstituted or hydrocarbyl substituted only
Patents: 61 Patent Applications: 21 - 291 Acyclic -C(=X)-, wherein X is chalcogen, bonded directly to the lactone ring
Patents: 76 Patent Applications: 9 - 292 Additional chalcogen bonded directly to the lactone ring
Patents: 376 Patent Applications: 61 - 293 Nitrogen attached directly or indirectly to the lactone ring by nonionic bonding
Patents: 43 Patent Applications: 15 - 294 Double bond between ring members of the lactone ring
Patents: 58 Patent Applications: 9 - 295 The lactone ring is five-membered
Patents: 222 Patent Applications: 40 - 296 Plural ring oxygens in the lactone ring
Patents: 37 Patent Applications: 5 - 297 Polycyclo ring system having the lactone ring as one of the cyclos
Patents: 79 Patent Applications: 20 - 298 Tetracyclo ring system having the lactone ring as one of the cyclos
Patents: 94 Patent Applications: 18 - 299 Tricyclo ring system having the lactone ring as one of the cyclos
Patents: 147 Patent Applications: 25 - 300 Two of the cyclos share at least three ring members or ring carbon is shared by the three cyclos (e.g., bridged or peri compounds, etc.)
Patents: 61 Patent Applications: 22 - 301 The tricyclo ring system consists of the lactone ring, a five-membered carbocyclic ring, and a three-membered carbocyclic ring
Patents: 14 Patent Applications: 0 - 302 Bicyclo ring system having the lactone ring as one of the cyclos
Patents: 98 Patent Applications: 18 - 303 Nitrogen bonded directly to the lactone ring
Patents: 40 Patent Applications: 6 - 304 Nitrogen attached indirectly to the lactone ring by acyclic nonionic bonding
Patents: 77 Patent Applications: 5 - 305 Chalcogen attached indirectly to the lactone ring by acyclic nonionic bonding
Patents: 136 Patent Applications: 23 - 306 Plural ring oxygens in the bicyclo ring system
Patents: 35 Patent Applications: 2 - 307 The other cyclo of the bicyclo ring system is benzene (e.g., phthalides, etc.)
Patents: 127 Patent Applications: 16 - 308 Two carbocyclic rings bonded directly to the same ring atom of the lactone ring
Patents: 40 Patent Applications: 5 - 309 Nitrogen bonded directly to each of the carbocyclic rings
Patents: 22 Patent Applications: 0 - 310 Additional chalcogen bonded directly to the bicyclo ring system
Patents: 81 Patent Applications: 10 - 311 The bicyclo ring system consists of two five-membered rings
Patents: 114 Patent Applications: 3 - 312 Acyclic carbon chain containing carbon to carbon unsaturation attached directly or indirectly to the lactone ring by nonionic bonding
Patents: 113 Patent Applications: 2 - 313 Additional chalcogen bonded directly to the lactone ring
Patents: 176 Patent Applications: 35 - 314 At least two additional chalcogens bonded directly to the lactone ring
Patents: 25 Patent Applications: 9 - 315 Double bond between ring members of the lactone ring or chalcogen double bonded directly at the 3- or 4-position of the lactone ring (e.g., ascorbic acid, etc.)
Patents: 151 Patent Applications: 26 - 316 Amine addition salts
Patents: 29 Patent Applications: 0 - 317 Sulfur or -C(=X)-, wherein X is chalcogen, bonded directly to acyclic chalcogen
Patents: 24 Patent Applications: 7 - 318 Acyclic -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the lactone ring by nonionic bonding
Patents: 99 Patent Applications: 5 - 319 Plural alkyl groups bonded directly to the same ring carbon of the lactone ring (e.g., pantolactone, etc.)
Patents: 39 Patent Applications: 4 - 320 Plural hetero rings
Patents: 96 Patent Applications: 6 - 321 Nitrogen attached directly or indirectly to the lactone ring by acyclic nonionic bonding
Patents: 148 Patent Applications: 31 - 322 Having -C(=X), wherein X is chalcogen, bonded directly to the lactone ring
Patents: 69 Patent Applications: 6 - 323 Chalcogen attached indirectly to the lactone ring by nonionic bonding
Patents: 175 Patent Applications: 23 - 324 Halogen attached directly or indirectly to the lactone ring by nonionic bonding
Patents: 73 Patent Applications: 1 - 325 Preparing by hydrogenation of cyclic anhydrides
Patents: 73 Patent Applications: 4 - 326 Preparing from compound containing -COO- group
Patents: 132 Patent Applications: 18 - 327 Acyclic carbon double bonded directly to a ring carbon of a four-membered lactone ring
Patents: 7 Patent Applications: 0 - 328 Four-membered lactone ring formed
Patents: 71 Patent Applications: 19 - 329 From a ketene (HCH=C=O, wherein H may be substituted)
Patents: 23 Patent Applications: 3 - 330 Spiro
Patents: 78 Patent Applications: 11 - 331 The spiro includes a hetero ring
Patents: 137 Patent Applications: 34 - 332 The spiro includes a three- or four-membered hetero ring
Patents: 192 Patent Applications: 26 - 333 Plural ring oxygens in a spiro hetero ring
Patents: 117 Patent Applications: 16 - 334 Both rings which form the spiro are hetero rings
Patents: 65 Patent Applications: 7 - 335 Two six-membered hetero rings, which each contain plural ring oxygens, form the spiro (e.g., spirobi-(meta-dioxane), etc.)
Patents: 52 Patent Applications: 9 - 336 Polycyclo ring system having one of the two rings which form the spiro as one of the cyclos
Patents: 129 Patent Applications: 17 - 337 Additional hetero ring containing
Patents: 43 Patent Applications: 1 - 338 Plural five-membered hetero rings
Patents: 25 Patent Applications: 7 - 339 Spiro ring is a cyclo in a tricyclo-carbocyclic ring system
Patents: 18 Patent Applications: 4 - 340 Acyclic -C(=X)-, wherein X is chalcogen, containing
Patents: 10 Patent Applications: 2 - 341 The spiro hetero ring is five-membered
Patents: 100 Patent Applications: 16 - 342 Acyclic -C(=X)-, wherein X is chalcogen, containing
Patents: 71 Patent Applications: 5 - 343 Both rings which form the spiro are hetero rings
Patents: 57 Patent Applications: 6 - 344 Polycyclo ring system having one of the two hetero rings which form the spiro as one of the cyclos
Patents: 37 Patent Applications: 22 - 345 Bicyclo ring system having the spiro hetero ring as one of the cyclos (e.g., griseofulvin, etc.)
Patents: 104 Patent Applications: 17 - 346 The hetero ring has at least seven members
Patents: 132 Patent Applications: 17 - 347 Plural ring oxygens in the hetero ring
Patents: 175 Patent Applications: 10 - 348 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 97 Patent Applications: 31 - 349 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 118 Patent Applications: 14 - 350 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 107 Patent Applications: 9 - 351 Three or more ring oxygens in the bicyclo ring system
Patents: 40 Patent Applications: 5 - 352 Three or more ring oxygens in the hetero ring
Patents: 68 Patent Applications: 13 - 353 Exactly four oxygens in the hetero ring
Patents: 48 Patent Applications: 3 - 354 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 168 Patent Applications: 53 - 355 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 127 Patent Applications: 20 - 356 The hetero ring is six-membered
Patents: 165 Patent Applications: 34 - 357 Plural ring oxygens in the hetero ring (e.g., 1,2-dioxin, etc.)
Patents: 60 Patent Applications: 4 - 358 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 61 Patent Applications: 19 - 359 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 82 Patent Applications: 11 - 360 Two of the cyclos share at least three ring members (i.e., bridged)
Patents: 31 Patent Applications: 2 - 361 Three or more ring oxygens in the tricyclo ring system (e.g., actinospectacin, etc.)
Patents: 59 Patent Applications: 12 - 362 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 309 Patent Applications: 62 - 363 The two cyclos share at least three ring members (i.e., bridged)
Patents: 77 Patent Applications: 6 - 364 Three or more ring oxygens in the bicyclo ring system
Patents: 64 Patent Applications: 5 - 365 The ring oxygens are in the 1,2- or 1,3-positions of the hetero ring
Patents: 107 Patent Applications: 19 - 366 Nitrogen attached indirectly to the hetero ring by acyclic nonionic bonding
Patents: 160 Patent Applications: 30 - 367 Three or more ring oxygens in the hetero ring
Patents: 18 Patent Applications: 4 - 368 Trioxane per se
Patents: 57 Patent Applications: 15 - 369 The ring oxygens are in the 1,3-positions of the hetero ring (e.g., 1,3 dioxane, etc.)
Patents: 258 Patent Applications: 27 - 370 Plural hetero rings
Patents: 137 Patent Applications: 20 - 371 Nitrogen bonded directly to the hetero ring
Patents: 39 Patent Applications: 4 - 372 Chalcogen or -C(=X), wherein X is chalcogen, bonded directly to the hetero ring
Patents: 128 Patent Applications: 18 - 373 Nitrogen attached indirectly to the hetero ring by nonionic bonding
Patents: 193 Patent Applications: 20 - 374 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 187 Patent Applications: 28 - 375 The chalcogen, X, is in a -C(=X)- group
Patents: 175 Patent Applications: 22 - 376 Preparing by reacting an aldehyde with a compound containing acyclic carbon to carbon unsaturation
Patents: 18 Patent Applications: 0 - 377 The ring oxygens are in the 1,4-positions of the hetero ring (e.g., 1,4 dioxane, etc.)
Patents: 69 Patent Applications: 4 - 378 Chalcogen attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 121 Patent Applications: 11 - 379 Plural chalcogens bonded directly to the hetero ring
Patents: 35 Patent Applications: 4 - 380 Halogen attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 34 Patent Applications: 0 - 381 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 66 Patent Applications: 21 - 382 Pentacyclo ring system having the hetero ring as one of the cyclos
Patents: 75 Patent Applications: 39 - 383 Tetracyclo ring system having the hetero ring as one of the cyclos
Patents: 76 Patent Applications: 29 - 384 The tetracyclo ring system consists of four six-membered cyclos
Patents: 75 Patent Applications: 36 - 385 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 83 Patent Applications: 13 - 386 Two of the cyclos share at least three ring members or ring carbon is shared by the three cyclos (e.g., bridged or peri compounds, etc.)
Patents: 60 Patent Applications: 9 - 387 Plural ring oxygens in the tricyclo ring system
Patents: 120 Patent Applications: 26 - 388 The tricyclo ring system consists of three six-membered cyclos (e.g., xanthene, etc.)
Patents: 123 Patent Applications: 49 - 389 Naphtho-pyrans (including hydrogenated)
Patents: 219 Patent Applications: 25 - 390 Dibenzo(b,d)pyrans (including hydrogenated)
Patents: 91 Patent Applications: 52 - 391 Plural chalcogens bonded directly to the tricyclo ring system
Patents: 69 Patent Applications: 17 - 392 Chalcogen bonded directly to the hetero ring
Patents: 51 Patent Applications: 18 - 393 Having -C(=X)-, wherein X is chalcogen, bonded directly to the tricyclo ring system
Patents: 47 Patent Applications: 2 - 394 Nitrogen bonded directly to the tricyclo ring system
Patents: 53 Patent Applications: 28 - 395 Acyclic chalcogen bonded directly to the hetero ring
Patents: 17 Patent Applications: 2 - 396 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 204 Patent Applications: 31 - 397 The two cyclos share at least three ring members (i.e., bridged)
Patents: 85 Patent Applications: 21 - 398 The bicyclo ring system consists of the hetero ring and a six-membered carbocyclic ring
Patents: 179 Patent Applications: 39 - 399 Chalcogen bonded directly to the hetero ring
Patents: 275 Patent Applications: 98 - 400 Plural chalcogens bonded directly to the hetero ring
Patents: 99 Patent Applications: 38 - 401 Chalcogen bonded directly to the ring carbon para to the ring oxygen (e.g., chromones, etc.)
Patents: 202 Patent Applications: 29 - 402 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
Patents: 116 Patent Applications: 26 - 403 Benzene ring bonded directly to the hetero ring (e.g., flavones, etc.)
Patents: 205 Patent Applications: 185 - 404 Nitrogen bonded directly to the bicyclo ring system
Patents: 246 Patent Applications: 44 - 405 Having -C(=X)-, wherein X is chalcogen, bonded directly to the bicyclo ring system
Patents: 150 Patent Applications: 51 - 406 Carbocyclic ring bonded directly to the hetero ring of the bicyclo ring system (e.g., flavanes, etc.)
Patents: 156 Patent Applications: 25 - 407 Chalcogen or nitrogen attached indirectly to the hetero ring by acyclic nonionic bonding
Patents: 253 Patent Applications: 32 - 408 Chalcogen bonded directly to the carbocyclic ring of the bicyclo ring system (e.g., tocopherols, etc.)
Patents: 226 Patent Applications: 26 - 409 Chalcogen double bonded or plural chalcogens bonded directly to the carbocyclic ring (e.g., coenzyme Q, etc.)
Patents: 26 Patent Applications: 6 - 410 Chalcogen of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens, bonded directly to the carbocyclic ring of the bicyclo ring system (e.g., tocopherol esters, etc.)
Patents: 80 Patent Applications: 16 - 411 Preparing from 1,4-di-oxygen substituted carbocyclic ring (e.g., of p benzoquinones, p-hydroquinones, etc.)
Patents: 44 Patent Applications: 14 - 412 Processes for chemical modification of substituents on the carbocyclic ring of the bicyclo ring system (e.g., alkylation of tocopherols, etc.)
Patents: 32 Patent Applications: 4 - 413 Purification or recovery
Patents: 56 Patent Applications: 9 - 414 Plural hetero rings
Patents: 275 Patent Applications: 20 - 415 Plural six-membered hetero rings
Patents: 283 Patent Applications: 33 - 416 Chalcogen bonded directly to the hetero ring
Patents: 257 Patent Applications: 53 - 417 Plural chalcogens bonded directly to the hetero ring
Patents: 286 Patent Applications: 77 - 418 Hydroxy bonded directly at the 3-position and oxygen double bonded directly at the 4-position of the hetero ring (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal)
Patents: 56 Patent Applications: 13 - 419 Nitrogen attached directly or indirectly to the hetero ring by acyclic nonionic bonding
Patents: 208 Patent Applications: 34 - 420 Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the hetero ring by acyclic nonionic bonding
Patents: 199 Patent Applications: 24 - 421 Alicyclic ring bonded directly to the chalcogen
Patents: 137 Patent Applications: 6 - 422 Five-membered carbocyclic ring having the hetero ring as part of one substituent and -COO- as part of another substituent (e.g., prostaglandin intermediates, etc.)
Patents: 94 Patent Applications: 0 - 423 Hydroxy or halogen attached directly or indirectly to the hetero ring by acyclic nonionic bonding (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal)
Patents: 104 Patent Applications: 9 - 424 Nitrogen bonded directly to the hetero ring
Patents: 98 Patent Applications: 44 - 425 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
Patents: 102 Patent Applications: 17 - 426 Nitrogen attached indirectly to the hetero ring by nonionic bonding
Patents: 196 Patent Applications: 43 - 427 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 158 Patent Applications: 40 - 428 Halogen attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 50 Patent Applications: 10 - 429 The hetero ring is five-membered
Patents: 238 Patent Applications: 41 - 430 Plural ring oxygens in the hetero ring
Patents: 175 Patent Applications: 23 - 431 Three or more ring oxygens in the hetero ring (e.g., ozonides, etc.)
Patents: 8 Patent Applications: 1 - 432 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 62 Patent Applications: 18 - 433 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 124 Patent Applications: 13 - 434 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 167 Patent Applications: 26 - 435 Plural hetero rings
Patents: 206 Patent Applications: 36 - 436 Having -C(=X)-, wherein X is chalcogen, bonded directly to the bicyclo ring system
Patents: 153 Patent Applications: 25 - 437 Acyclic chalcogen bonded directly to the bicyclo ring system
Patents: 154 Patent Applications: 19 - 438 Having -C(=X)-, wherein X is chalcogen, attached indirectly to the bicyclo ring system by nonionic bonding
Patents: 159 Patent Applications: 14 - 439 Nitrogen bonded directly to the bicyclo ring system
Patents: 150 Patent Applications: 20 - 440 Nitrogen attached indirectly to the bicyclo ring system by nonionic bonding
Patents: 69 Patent Applications: 16 - 441 The nitrogen is bonded directly to a -C(=X)- group, wherein X is chalcogen
Patents: 179 Patent Applications: 31 - 442 The nitrogen is attached directly to carbon by a double or triple bond
Patents: 105 Patent Applications: 4 - 443 Chalcogen attached indirectly to the bicyclo ring system by nonionic bonding
Patents: 97 Patent Applications: 11 - 444 The chalcogen, X, is in a -C(=X)- group
Patents: 83 Patent Applications: 9 - 445 Chalcogen attached indirectly to the ring system by nonionic bonding
Patents: 109 Patent Applications: 8 - 446 The chalcogen, X, is in a -C(=X)- group
Patents: 60 Patent Applications: 4 - 447 The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
Patents: 135 Patent Applications: 10 - 448 Plural hetero rings
Patents: 177 Patent Applications: 18 - 449 Nitrogen or chalcogen bonded directly to the hetero ring
Patents: 103 Patent Applications: 14 - 450 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
Patents: 91 Patent Applications: 5 - 451 Nitrogen attached indirectly to the hetero ring by nonionic bonding
Patents: 192 Patent Applications: 19 - 452 The nitrogen is bonded directly to a -C(=X)- group, wherein X is chalcogen
Patents: 140 Patent Applications: 10 - 453 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 237 Patent Applications: 32 - 454 The chalcogen, X, is in a -C(=X)- group
Patents: 224 Patent Applications: 37 - 455 Halogen attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 124 Patent Applications: 5 - 456 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 58 Patent Applications: 22 - 457 Tetracyclo ring system having the hetero ring as one of the cyclos
Patents: 58 Patent Applications: 35 - 458 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 184 Patent Applications: 73 - 459 Two of the cyclos share at least three ring members (i.e., bridged)
Patents: 55 Patent Applications: 16 - 460 Dibenzofurans (including hydrogenated)
Patents: 107 Patent Applications: 66 - 461 Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the tricyclo ring system by nonionic bonding
Patents: 90 Patent Applications: 22 - 462 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 305 Patent Applications: 47 - 463 The two cyclos share at least three ring members (i.e., bridged)
Patents: 165 Patent Applications: 15 - 464 Plural ring oxygens in the bicyclo ring system
Patents: 102 Patent Applications: 85 - 465 The bicyclo ring system consists of two five-membered cyclos
Patents: 267 Patent Applications: 14 - 466 Acyclic chalcogen bonded directly to the hetero ring
Patents: 193 Patent Applications: 33 - 467 Nitrogen attached directly or indirectly to the hetero ring by acyclic nonionic bonding
Patents: 446 Patent Applications: 174 - 468 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
Patents: 188 Patent Applications: 55 - 469 Benzene ring bonded directly to the hetero ring
Patents: 229 Patent Applications: 89 - 470 Chalcogen of -C(=X)X-, wherein the X's are the same or diverse chalcogens, bonded directly to the carbocyclic ring of the bicyclo ring system
Patents: 131 Patent Applications: 5 - 471 Plural double bonds between ring members of the hetero ring
Patents: 201 Patent Applications: 9 - 472 Plural hetero rings
Patents: 251 Patent Applications: 22 - 473 Acyclic -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 254 Patent Applications: 25 - 474 Cyano bonded directly to the hetero ring
Patents: 88 Patent Applications: 7 - 475 Chalcogen bonded directly to the hetero ring
Patents: 327 Patent Applications: 51 - 476 Plural chalcogens bonded directly to the hetero ring
Patents: 133 Patent Applications: 13 - 477 Chalcogen double bonded directly to the hetero ring
Patents: 69 Patent Applications: 24 - 478 Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 116 Patent Applications: 17 - 479 Double bond between ring members of the hetero ring
Patents: 267 Patent Applications: 43 - 480 Nitrogen bonded directly to the hetero ring
Patents: 223 Patent Applications: 26 - 481 Nitro bonded directly to the hetero ring
Patents: 51 Patent Applications: 3 - 482 The hetero ring and an additional nitrogen are bonded directly to the same carbon
Patents: 23 Patent Applications: 1 - 483 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
Patents: 166 Patent Applications: 20 - 484 The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
Patents: 163 Patent Applications: 27 - 485 Plural -C(=X)X- groups bonded directly to the hetero ring
Patents: 26 Patent Applications: 8 - 486 The carbon of the -C(=X)X- group is bonded directly at the 3-position of the hetero ring
Patents: 63 Patent Applications: 12 - 487 Nitrogen bonded directly to the -C(=X)- group
Patents: 221 Patent Applications: 58 - 488 Additional chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 136 Patent Applications: 30 - 489 Preparation of furfural (i.e., furan-2-aldehyde)
Patents: 29 Patent Applications: 16 - 490 Purification or recovery of furfural
Patents: 20 Patent Applications: 2 - 491 Nitrogen attached indirectly to the hetero ring by nonionic bonding
Patents: 332 Patent Applications: 41 - 492 Nitrogen and the hetero ring are single bonded directly to the same acyclic saturated hydrocarbon group
Patents: 115 Patent Applications: 18 - 493 The nitrogen is bonded directly to a -C(=X)- group, wherein X is chalcogen
Patents: 125 Patent Applications: 19 - 494 Having -C(=X)-, wherein X is chalcogen, attached indirectly to the hetero ring by nonionic bonding
Patents: 120 Patent Applications: 19 - 495 Chalcogen attached indirectly to the hetero ring by acyclic nonionic bonding
Patents: 116 Patent Applications: 12 - 496 Having -C(=X)-, wherein X is chalcogen, attached indirectly to the hetero ring by nonionic bonding
Patents: 328 Patent Applications: 44 - 497 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 196 Patent Applications: 17 - 498 The chalcogen, X, is in a -C(=X)- group
Patents: 153 Patent Applications: 24 - 499 The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
Patents: 225 Patent Applications: 13 - 500 Plural -C(=X)X- groups attached indirectly to the hetero ring by nonionic bonding
Patents: 59 Patent Applications: 2 - 501 Additional chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 174 Patent Applications: 15 - 502 Plural chalcogens attached indirectly to the hetero ring by nonionic bonding
Patents: 116 Patent Applications: 20 - 503 Preparing by hydrogenation of furfural
Patents: 20 Patent Applications: 4 - 504 Halogen attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 93 Patent Applications: 4 - 505 Plural double bonds between ring members of the hetero ring
Patents: 101 Patent Applications: 19 - 506 Hydrocarbyl substituted
Patents: 62 Patent Applications: 11 - 507 One double bond between ring members of the hetero ring
Patents: 59 Patent Applications: 6 - 508 Preparing from compound containing -COO- group
Patents: 89 Patent Applications: 14 - 509 Preparing from a hydroxy containing compound
Patents: 90 Patent Applications: 7 - 510 The hetero ring is four-membered
Patents: 748 Patent Applications: 214 - 511 Sulfur or halogen attached directly or indirectly to the hetero ring by nonionic bonding
Patents: 507 Patent Applications: 15 - 512 The hetero ring is three-membered consisting of one oxygen and two carbons
Patents: 162 Patent Applications: 37 - 513 Processes
Patents: 122 Patent Applications: 41 - 514 Epihalohydrin, glycerol monohalohydrin or glycerol dihalohydrin reactant
Patents: 50 Patent Applications: 19 - 515 Glycidyl ester formed by bonding the oxy of a -COO- group directly to an acyclic carbon which is bonded directly to an oxirane ring
Patents: 30 Patent Applications: 1 - 516 Glycidyl ether formed by bonding oxygen directly to an acyclic carbon which is bonded directly to an oxirane ring
Patents: 34 Patent Applications: 2 - 517 Phenolic ether formed
Patents: 93 Patent Applications: 2 - 518 Oxirane ring formed
Patents: 104 Patent Applications: 57 - 519 Carbonyl of aldehyde or ketone reacted to form oxirane ring
Patents: 69 Patent Applications: 8 - 520 By dehydrohalogenation of a halohydrin or by reacting a hypohalite or hypohalous acid with an ethylenically unsaturated compound at the site of unsaturation
Patents: 41 Patent Applications: 13 - 521 Oxirane ring and chalcogen, cyano, nitrogen, or halogen are bonded directly to the same carbon (e.g., glycidyl ester formed, etc.)
Patents: 54 Patent Applications: 9 - 522 Oxirane ring is unsubstituted or hydrocarbyl substituted only
Patents: 32 Patent Applications: 4 - 523 Epoxidation at site of ethylenic unsaturation
Patents: 192 Patent Applications: 73 - 524 Liquid phase epoxidation
Patents: 74 Patent Applications: 13 - 525 Organic peracid utilized
Patents: 136 Patent Applications: 6 - 526 In situ formation of the organic peracid from carboxylic acid and hydrogen peroxide
Patents: 27 Patent Applications: 1 - 527 Epoxidizing unsaturated fat or fatty oil, or unsaturated derivative thereof
Patents: 13 Patent Applications: 0 - 528 Epoxidizing unsaturated fat or fatty oil, or unsaturated derivative thereof
Patents: 10 Patent Applications: 0 - 529 Organic hydroperoxide reactant
Patents: 226 Patent Applications: 32 - 530 Boron containing catalyst utilized
Patents: 27 Patent Applications: 1 - 531 Hydrogen peroxide utilized
Patents: 309 Patent Applications: 60 - 532 Air or molecular oxygen utilized
Patents: 78 Patent Applications: 5 - 533 Heavy metal containing catalyst utilized
Patents: 158 Patent Applications: 56 - 534 Silver containing catalyst utilized
Patents: 195 Patent Applications: 46 - 535 Fluidized catalyst
Patents: 14 Patent Applications: 3 - 536 Additional heavy metal containing material utilized (e.g., promoter which contains heavy metal utilized, etc.)
Patents: 134 Patent Applications: 35 - 537 Group IIA light metal containing material utilized
Patents: 48 Patent Applications: 3 - 538 Purification or recovery
Patents: 42 Patent Applications: 4 - 539 Ether or -COO- group formed
Patents: 46 Patent Applications: 8 - 540 Isomerization, halogenation, hydrogenation, or dehydrohalogenation to form compound
Patents: 43 Patent Applications: 3 - 541 Purification or recovery
Patents: 167 Patent Applications: 21 - 542 By adsorption or by chemical reaction with impurity
Patents: 67 Patent Applications: 7 - 543 Polycyclo ring system having the hetero ring as one of the cyclos
Patents: 31 Patent Applications: 8 - 544 Tetracyclo ring system having the hetero ring as one of the cyclos
Patents: 29 Patent Applications: 7 - 545 Tricyclo ring system having the hetero ring as one of the cyclos
Patents: 68 Patent Applications: 12 - 546 Bicyclo ring system having the hetero ring as one of the cyclos
Patents: 147 Patent Applications: 16 - 547 Plural bicyclo ring systems each having a hetero ring as one of the cyclos
Patents: 29 Patent Applications: 7 - 548 Having -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring
Patents: 76 Patent Applications: 13 - 549 The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
Patents: 91 Patent Applications: 11 - 550 Cyano, nitrogen, or halogen bonded directly to the hetero ring
Patents: 53 Patent Applications: 4 - 551 Nitrogen attached indirectly to the hetero ring by nonionic bonding
Patents: 174 Patent Applications: 35 - 552 Cyano or nitrogen and the hetero ring bonded directly to the same carbon
Patents: 89 Patent Applications: 3 - 553 The nitrogen is bonded directly to a -C(=X)- group, wherein X is chalcogen
Patents: 85 Patent Applications: 10 - 554 Chalcogen attached indirectly to the hetero ring by nonionic bonding
Patents: 156 Patent Applications: 32 - 555 Chalcogen and the hetero ring bonded directly to the same carbon (e.g., glycidyl ethers, etc.)
Patents: 127 Patent Applications: 8 - 556 Sulfur or -C(=X)-, wherein X is chalcogen, attached indirectly to the hetero ring by nonionic bonding
Patents: 109 Patent Applications: 6 - 557 The chalcogen, X, is part of a -C(=X)X- group or a -X-X- group, wherein the X's are the same or diverse chalcogens (e.g., -COO-HCH-oxirane, etc.)
Patents: 73 Patent Applications: 15 - 558 Halogen attached indirectly to the hetero ring by nonionic bonding
Patents: 23 Patent Applications: 1 - 559 Carbocyclic ring containing
Patents: 86 Patent Applications: 3 - 560 Carbocyclic ring containing
Patents: 157 Patent Applications: 14 - 561 The chalcogen, X, is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
Patents: 86 Patent Applications: 13 - 562 Additional -C(=X)- or other sulfur attached indirectly to the hetero ring
Patents: 48 Patent Applications: 8 - 563 Halogen attached indirectly to the hetero ring by nonionic bonding
Patents: 86 Patent Applications: 11
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