Celebrity Inventors
Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4695655 | Ethynylthiophenoxy derivatives of diphenylhexafluoropropane Ethynylphenyl derivatives of diphenylhexafluoropropane having the formula: ##STR1## where X is oxygen or sulfur and each of R, R1, or R2 is hydrogen or ethynyl. The compounds are useful in forming polymer structures, either homo... | 09/22/1987 |
| 4675331 | Arthropodicidal benzothiazolyl and benzoxazolyl benzamides Novel arthropodicidally active benzamides of the formula ##STR1## in which X is a halogen atom, a lower alkyl group, a lower alkoxy group or a halogen-substituted lower alkyl group, Y is a halogen atom or a lower alkyl group, n is 0, 1 or 2, Z is an oxyge... | 06/23/1987 |
| 4673749 | Process for producing an indoline A process for producing an indoline of the formula: ##STR1## wherein R1 is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a nitro group or a hydroxyl group, R2 is a hydrogen atom, a lower alkoxy group or a nitro gro... | 06/16/1987 |
| 4670602 | Method of making disulfides using a combination reaction vessel and aspirator-mixer There are disclosed a method and apparatus for effecting a chemical reaction. There is provided an aspirator-mixer or zone to which the reaction mass is pumped to activate the same and into which another reactant is furnished and from which admixed reacti... | 06/02/1987 |
| 4668825 | Production of methanethiol from H2 S and CO Methanethiol is produced from a gaseous feed comprising a mixture of H2 S and CO by contacting said feed with a catalyst comprising rutile titania at a temperature of at least about 225° C.... | 05/26/1987 |
| 4665242 | Process for the production of methyl mercaptan from oxides of carbon In a process for the production of methyl mercaptan by heating a gas comprising carbon monoxide and/or carbon dioxide, hydrogen sulphide and hydrogen in contact with a catalyst based upon a heavy metal sulphide, with recycling of the gas fraction which ha... | 05/12/1987 |
| 4658067 | Dialkylthioalkenes, dialkylthioalkylcycloalkenes and monoalkylthioalkenylcycloalkenes and organoleptic uses thereof Described are dialkylthioalkenes, dialkylthioalkylcycloalkenes and monoalkylthioalkenylcycloalkenes defined according to the generic structure: ##STR1## as well as the genus defined according to the structure: ##STR2## wherein R represents ... | 04/14/1987 |
| 4652682 | Ortho-dioxybenzaldehyde dimethyl mercaptals and use thereof in augmenting or enhancing the aroma or taste of foodstuffs Described are the ortho-dioxybenzaldehyde dimethyl mercaptals having the structure: ##STR1## wherein R represents hydrogen or methyl and the use thereof in augmenting or enhancing the aroma or taste of foodstuffs.... | 03/24/1987 |
| 4652653 | Process for the preparation of ଲ-(benzothiazolylthio)- and ଲ-(benzimidazolylthio)-carboxylic acid derivatives The reaction of 2-mercapto-benzothiazole or -benzimidazole with ,ଲ-unsaturated carboxylic acid derivatives in a strongly acid reaction medium gives compounds of the formula I ##STR1## in which X is sulfur or NH, each radical R independen... | 03/24/1987 |
| 4647669 | Process for the purification of mercaptobenzothizaole A process for purifying crude synthetic mercaptobenzothiazole according to the invention, which comprises treating the crude mercaptobenzothiazole with aniline, filtering and washing the crystallized mercaptobenzothiazole with aniline and, if desired, rec... | 03/03/1987 |
| 4644066 | Flame retardants and compositions containing them Flame retardants having good stability at the processing temperatures of high melting polymers are described. The flame retardants are halogen-containing bis-imides, for example, those of the formula ##STR1## R being defined in the specification.... | 02/17/1987 |
| 4642354 | Process for producing phthalimides of alkali metals A process for producing phthalimides of alkali metals by reacting phthalimide with an alcoholic solution of an alkali metal hydroxide and/or alcoholate, in which the molar ratio is equal to 1:1.03-1.1, while maintaining the alcohol concentration in the re... | 02/10/1987 |
| 4638093 | Preparation of secondary thiols A process is disclosed for the preparation of secondary thiols by the addition of H2 S to C10 to C30 linear olefins in the presence of certain zeolite catalysts. The process achieves high selectivity to the secondary thiol... | 01/20/1987 |
| 4626599 | Dithioethers of 2-phenyl-2-alkenals and organoleptic uses thereof Described are dithioethers of 2-phenyl-2-alkenals defined according to the generic structure: ##STR1## wherein N represents 0 or 1 and R4 and R5 each represents hydrogen or methyl taken alone or taken further together with dithi... | 12/02/1986 |
| 4625065 | Process for preparation of trimethylsulfoxonium salts A method for the production of trimethylsulfoxonium salts is described in which trimethylsulfonium salts are oxidized with ruthenium tetroxide in the presence of an inert solvent to form the corresponding trimethylsulfoxonium salts.... | 11/25/1986 |
| 4621097 | Saturated cycloalkyl[c] pyrrole-2(1H)-acetic acid amides and derivatives thereof A unique series of saturated cycloalkyl[c]-pyrrol-2(1H)-acetic acid amides are useful as agents for the reversal of amnesia. Intermediates for preparing the compounds, pharmaceutical composition containing the compounds, and methods for using the pharmace... | 11/04/1986 |
| 4619961 | Halogenated polyphenyl sulfide or sulfide/ether compounds Organic materials are made flame retardant by addition of a polyhalogenated polyphenylene sulfide such as decabromodiphenyl sulfide or 1,4-thiobis(2,4,6-tribromophenyl)-2,3,5,6-tetrabromobenzene alone or in combination with a Group VA metal oxide, e.g. Sb... | 10/28/1986 |
| 4620001 | Chemical methods and intermediates for preparing substituted pyrimidinones A series of chemical reactions starting from the condensation of uracil with an acid stable heterocyclic aldehyde in an acid medium produces biologically active end products which are 2-heterocyclylmethylthioethylamino-5-heterocyclylmethyl-4-pyrimidinones... | 10/28/1986 |
| 4618723 | Reduction of carbon oxides with hydrogen sulfide Carbon monoxide and carbon dioxide are upgraded to valuable organic compounds, such as methanol, methane, propylene, and the like, by a thermochemical process comprising: (a) contacting the carbon monoxide and/or carbon dioxide with hydrogen sulfide to fo... | 10/21/1986 |
| 4618721 | Process for the preparation of nitrodiphenyl disulfides The invention describes a process for the preparation of nitrodiphenyl disulfides by reacting halonitrobenzenes of the formula ##STR1## wherein X is chlorine, bromine or iodine, R1 is hydrogen or nitro and R2 is hydrogen, C... | 10/21/1986 |
| 4618722 | Preparation of organic sulfides A process for preparing dihydrocarbyl sulfides comprises the step of simultaneously contacting (a) a dialkyl sulfoxide, preferably dimethyl sulfoxide, with (b) a hydrocarbyl halide, particularly an alkyl or alkenyl bromide, and (c) a metal carboxylate, pr... | 10/21/1986 |
| 4617136 | Dicocoamine derivatives of 2,5-dimercapto-1,3,4-thiadiazole This invention relates to novel dicocoamine derivatives of 2-(octyldithio)-5-mercapto-1,3,4-thiadiazole. The compounds are suitable for use as corrosion inhibitors in lubricating compositions.... | 10/14/1986 |
| 4614806 | Process for the asymmetric synthesis of chiral indoline-2-carboxylic acids Disclosed herein is a process for producing an asymmetric indoline-2-carboxylic acid of the structural Formula: ##STR1## wherein X is hydrogen, bromine, chlorine, C1-4 alkyl or C1-4 alkoxy, which comprises: (a) assymetrically re... | 09/30/1986 |
| 4614807 | 6,7-dihalomelatonins 6,7-Dichloromelatonin and related compounds are ovulation inhibitors of the formula ##STR1## wherein R and R1 are individually F or Cl, R2 is C1-3 alkyl, including methyl, ethyl, n-propyl and isopropyl, and R3 | 09/30/1986 |
| 4613468 | Method for preparing aromatic and olefinic organoselenium and organotellurium compounds This invention constitutes a method of preparing molecular and supramolecular aromatic organic telluride, ditelluride, diselenide and selenide compounds from aromatic halogen compounds which are unactivated toward nucleophilic substitution. The method inv... | 09/23/1986 |
| 4612398 | Alkyl mercaptan process A process for making alkyl mercaptans in high yield while minimizing the formation of dialkyl sulfides is conducted by reacting an olefin with hydrogen sulfide in an inert solvent (e.g. CH2 Cl2) containing a Lewis Acid catalyst (e.g.... | 09/16/1986 |
| 4605774 | Preparation of bis(4-hydroxyphenyl thio)benzenes The present invention relates to the novel monomers generically identified as bis(4-hydroxyphenyl thio)benzenes, to a process for their production and to their use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyether... | 08/12/1986 |
| 4604387 | 1,2,4-triazinylthiomethyl-3-cephem sulfoxides, and a procedure for their preparation Cephalosporin derivatives effective against gram-negative bacteria and virtually inactive against staphylococci are disclosed. The derivatives have the following general formula: ##STR1## in which R is ##STR2## R" and R"' are hydrogen, lowe... | 08/05/1986 |
| 4600722 | 3-amino-1-(4,5,6,7-tetrahydro-benzothiazolyl)-2-pyrazolines and a process for the treatment of inflammatory or allergic processes in humans The invention relates to new 3-amino-1-(4,5,6,7-tetrahydro-benzothiazolyl)-2-pyrazolines of the Formula I ##STR1## and acid addition salts thereof and a process for the treatment of inflammatory and allergic processes in humans.... | 07/15/1986 |
| 4599451 | Process for preparing ortho-(alkylthio)phenols The process of the invention involves reacting a phenol with a dialkyl disulfide in the presence of a zirconium phenoxide catalyst to prepare the corresponding ortho-(alkylthio)phenol.... | 07/08/1986 |
| 4599357 | 1-mercaptoalkanoylindoline-2-carboxylic acids 1-Mercaptoalkanoylindoline-2-carboxylic acids, e.g., those of the formula ##STR1## and functional derivatives thereof, are antihypertensive and cardioactive agents.... | 07/08/1986 |
| 4596997 | Phenolic compound, preparation thereof and recording material employing same A phenolic compound represented by the formula: ##STR1## a process for producing it and a recording material comprising a support bearing a heat- or pressure-sensitive color-forming layer containing the phenolic compound and a leuco dye.... | 06/24/1986 |
| 4596828 | [(2-hydroxy-5-alkoxyphenyl)methylthio]phenylmethanol and derivatives thereof useful as anti-inflammatory agents [(2-Hydroxy-5-alkoxyphenyl)methylthio]phenylmethanol and derivatives thereof were prepared from an appropriate 2-hydroxy-5-alkoxybenzaldehyde with a hydroxymethylthiophenol. These compounds were found to be potent anti-inflammatory agents.... | 06/24/1986 |
| 4595766 | Process for the preparation of an indoline carboxylic acid The invention relates to a novel process for the preparation of the optically pure 2S- or 2R-indolinecarboxylic acid of the formula ##STR1## and salts thereof. The process comprises forming the heterocyclic 5-membered ring in formula I from an open c... | 06/17/1986 |
| 4591645 | Process for the production of 2-(hydrocarbyldithio)-5-mercapto-1,3,4-thiadiazoles 2-(Hydrocarbyldithio)-5-mercapto-1,3,4-thiadiazoles are obtained by reacting bis-(2,5-dithio-1,3,4-thiadiazole with a tert.-hydrocarbyl mercaptan of which the hydrocarbyl moiety contains from 4 to 60 carbon atoms.... | 05/27/1986 |
| 4590280 | Preparing indoline derivatives An improved process for preparing sulfonylated indoline compounds of the formula ##STR1## via reduction of a nitrodiol of the formula ##STR2## where R1 and R3 are defined in the specification, to obtain the correspondi... | 05/20/1986 |
| 4590267 | Crystalline disodium salt of cefodizim A crystalline water soluble disodium salt of 7-ଲ-[2-(2-aminothiazol-4-yl)-2-syn-methoximinoacetamido]-3-(5-carboxy methyl-4-methyl-1,3-thiazol-2-ylthiomethyl)ceph-3-em-4-carboxylic acid (cefodizim), or an adduct or solvate thereof with water and/or a... | 05/20/1986 |
| 4585877 | Process for preparing 1,8-diethyl-1,3,4,9-tetrahydropyrano(3,4-b)-indole-1-acetic acid, etodolac A process for preparing 1,8-diethyl-1,3,4,9-tetrahydro[3,4-b]-indole-1-acetic acid (etodolac) is disclosed. Etodolac is a useful antiinflammatory and analgesic agent.... | 04/29/1986 |
| 4585879 | Process for preparing indoline-2-carboxylic acids via alpha-hydroxy-2-nitrobenzenepropanoic acid Disclosed herein is a process for obtaining indoline-2-carboxylic acid (or derivatives thereof) comprising the following steps: (a) reducing -oxo-2-nitrobenzenepropanoic acid to -hydroxy-2-nitrobenzenepropanoic acid, (b) replacing the hydrox... | 04/29/1986 |
| 4582939 | Mercaptan production Catalytic process for the production of mercaptans by contacting unsaturated hydrocarbons with hydrogen sulfide in the presence of a sulfonic acid cation exchange resin catalyst.... | 04/15/1986 |
