"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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 |
| 7150943 | Inorganic solid electrolyte and lithium cell component A sulfide-based inorganic solid electrolyte that suppresses the reaction between silicon sulfide and metallic lithium even when the electrolyte is in contact with metallic lithium, a method of forming the electrolyte, and a lithium battery's member and lithium secon... | 12/19/2006 |
| 6821677 | Negative electrode active material and nonaqueous electrolyte battery A nonaqueous electrolyte battery includes a positive electrode containing a positive electrode active material, a negative electrode containing a sulfide containing Fe, and a nonaqueous electrolyte including a nonaqueous solvent and a solute dissolved in the nonaque... | 11/23/2004 |
| 6613926 | Perchloramido phosphonyl reagents and analogs thereof Novel compounds are provided in the form of nucleoside pyrophosphate and triphosphate analogs. In these analogs, the pyrophosphate or triphosphate group is replaced with a moiety that is isosterically and electronically identical thereto, but is hydrolyti... | 09/02/2003 |
| 6328929 | Method of delivering disinfectant in an absorbent substrate A method of delivering disinfectant in an absorbent substrate. A first step involves intermixing a first reactant chemical with a first ink. A second step involves intermixing a second reactant chemical with a second ink. A third step involves printing a ... | 12/11/2001 |
| 6251350 | Process for the manufacture of thiophosphoryl chloride The present invention relates to an improved process for the preparation of thiophosphoryl chloride which is useful as an intermediate for the synthesis of insecticidally active compounds. The improvement comprises the presence in the reaction mixture of ... | 06/26/2001 |
| 6019955 | Active nickel hydroxide material having controlled water content An nickel hydroxide positive electrode active material which can be made by an ultrasonic precipitation method. The nickel hydroxide active material is characterized by the composition: ##EQU1## where x, the number of water ligands surrounding each N... | 02/01/2000 |
| 6004898 | Alkaline earth metal containing small pore non-zeolitic molecular sieve catalysts The present invention is directed to a catalyst composition comprising a non-zeolitic molecular sieve and one or more alkaline earth metals selected from the group consisting of strontium, calcium, barium, and mixtures thereof, wherein said non-zeolitic m... | 12/21/1999 |
| 5855809 | Electrochemically stable electrolytes This invention relates generally to inorganic ionic liquids which function as electrolytes and do not crystallize at ambient temperature. More specifically, this invention is directed to quasi-salt inorganic ionic liquids which comprise the reaction produ... | 01/05/1999 |
| 5824433 | High conductivity electrolyte solutions and rechargeable cells incorporating such solutions This invention relates generally to electrolyte solvents for use in liquid or rubbery polymer electrolyte solutions as are used, for example, in electrochemical devices. More specifically, this invention relates to sulfonyl/phospho-compound electrolyte so... | 10/20/1998 |
| 5663402 | Process for the preparation of phosphorodithioic compounds via thionation reaction There is disclosed a novel process for preparing products of the reaction of elemental phosphorus and elemental sulfur under reaction conditions wherein the phosphorus and sulfur are combined in a pre-mix at temperatures below the reaction temperature. Th... | 09/02/1997 |
| 5543128 | Regeneration method for process waste containing sulfur and phosphorus A method for treatment of process waste obtained from the synthesis of thiophene or its derivatives, which method produces phosphorus pentasulfide of sufficiently high purity for recycling in said synthesis process, as well as a residue material suited fo... | 08/06/1996 |
| 5534349 | Granulation of phosphorus pentasulfide with a predetermined reactivity Uniform, free-flowing, non-friable P2 S5 granules having a predetermined reactivity can be produced by accretion by spraying molten P2 S5 Sonto cascading, smaller solid particles of P2 S5. ... | 07/09/1996 |
| 5505885 | Granulation of phosphorus pentasulfide with a predetermined reactivity Uniform, free-flowing, non-friable P2 S5 granules having a predetermined reactivity can be produced by accretion by spraying molten P2 S5 onto cascading, smaller solid particles of P2 S5. T... | 04/09/1996 |
| 5464601 | Process for preparing sulfides of phosphorus There is disclosed a novel process for preparing products of the reaction of elemental phosphorus and elemental sulfur under reaction conditions wherein the phosphorus and sulfur are combined in a pre-mix at temperatures below the reaction temperature. Th... | 11/07/1995 |
| 5340557 | 32 P thiophosphate preparation 32 P-Thiophosphates of the general formula: ##STR1## wherein n =1, 2 or 3 and each M, which may be the same or different, is H or a cation, are prepared by heating H332 PO4 or a salt thereof with at least a... | 08/23/1994 |
| 5198202 | Continuous production of tetraphosphorus polysulfides The tetraphosphorus polysulfides of the formula P4 Sx, wherein x is at least 3, especially tetraphosphorus decasulfide, P4 S10, are prepared by (a) establishing a continuously circulating closed loop of a liquid... | 03/30/1993 |
| 4732745 | Process for making phosphorus pentasulfide Phosphorus pentasulfide is made. To this end gaseous nitrogen is introduced into the pipes feeding a reactor with a phosphorus melt and sulfur melt and/or into the outlet pipe for the phosphorus pentasulfide melt, the nitrogen being admitted under a press... | 03/22/1988 |
| 4579724 | Cathode material for alkali-metal rechargeable cell A low-temperature synthesis of MII PS3 (M preferably Fe, Co or Ni) comprises mixing M2+ cation with P2 S64- anion; if insoluble, MII PS3 precipitates; otherwise, M2+... | 04/01/1986 |
| 4557914 | Process for producing substances optically transparent to infrared rays In order to obtain substances that are optically transparent in the infrared range, usable in the manufacture of optical fibers or radiation emitters, a metal or metalloid chalcogenide other than an oxide is produced by a double-substitution reaction betw... | 12/10/1985 |
| 4518573 | Differential flotation reagent and method of preparation A dry differential flotation reagent for molybdenum-bearing ore is disclosed comprising from about 1 to about 30 percent by weight of NaSH, 0 to 20 percent by weight of NaOH, 60 to 90 percent by weight of a mixture of sodium thiophosphates comprising, as ... | 05/21/1985 |
| 4473538 | Process for removing molten phosphorus pentsulfide from a reactor The invention provides a process and an apparatus for removing molten phosphorus pentasulfide, via an overflow, from a reactor, wherein phosphorus is reacted with sulfur at temperatures higher than 300° C. To this end, the reactor is supplied with phosph... | 09/25/1984 |
| 4439301 | Photoelectrochemical cells including chalcogenophosphate photoelectrodes Photoelectrochemical cells employing chalcogenophosphate (MPX3) photoelectrodes are disclosed, where M is selected from the group of transition metal series of elements beginning with scandium (atomic number 21) through germanium (atomic number... | 03/27/1984 |
| 4419104 | Preparing P2 S5 of low reactivity Phosphorus pentasulfide of low reactivity is made by solidifying molten phosphorus pentasulfide on a cooling cylinder that delivers the solidified product at a temperature of 150° to 220° C., and that product is immediately introduced into a heat-insula... | 12/06/1983 |
| 4396581 | Apparatus for making phosphorus pentasulfide The invention relates to an apparatus for making P2 S5 comprised of a plurality of reactors connected by pipe structures to a collecting tank which is common to all of them. By means of partitions, the cooling tank is subdivided into... | 08/02/1983 |
| 4386020 | Process for the production of thermodynamically stable solid ion conductor materials The present invention provides a process for the production of solid ion ductor materials (electrolytes) based on lithium or sodium compounds which stand in thermodynamic equilibrium with their alkali metal and have a high decomposition voltage, wherein ... | 05/31/1983 |
| 4374706 | Process for the purification of phosphorus pentasulphide by distillation under vacuum Process for the purification of phosphorus pentasulphide by means of distillation under vacuum at a residual pressure of about 6 mmHg and carried out according to a "thermal profile" comprising, immediately before and immediately after the liquid-vapor-li... | 02/22/1983 |
| 4301014 | Phosphorus pentasulfide waste water treatment The process disclosed in this invention takes the waste solids, gases, and water from a phosphorus pentasulfide manufacturing facility and hydrolyzes the phosphorus pentasulfide by heating. The phosphorus portion is converted to a soluble phosphate and th... | 11/17/1981 |
| 4267157 | Process of preparing metal phosphorus trisulfides A process for producing relatively pure metal phosphorus trisulfides of the formula MPS3 wherein M is a metal selected from the group consisting of Mg, Ca, Sr, V, Mn, Fe, Co, Ni, Pd, Zn, Cd, Hg, Sn, Pb, Sm, Eu, Yb and mixtures thereof, said pro... | 05/12/1981 |
| 4248602 | Production of phosphorus pentasulfide of predetermined reactivity The invention provides a process wherein a mixture prepared from starting materials comprised of P2 S5 of high reactivity and low reactivity, respectively, is converted to phosphorus pentasulfide of predetermined reactivity lying bet... | 02/03/1981 |
| 4173621 | Process for improving the reactivity of phosphorus pentasulfide The reactivity of phosphorus pentasulfide produced by reacting phosphorus and sulfur at a temperature higher than the melting point of phosphorus pentasulfide and allowing the resulting melt to cool and solidify on a cooling device is improved. To this en... | 11/06/1979 |
| 4097583 | Process for the production of phosphorus pentasulfide Production of phosphorus pentasulfide from phosphorus and sulfur at elevated temperature in a reactor of which the walls are in heat exchange with a substance kept at the temperature necessary for cooling or heating reaction mixture. The heat exchange in ... | 06/27/1978 |
| 4049879 | Intercalated transition metal phosphorus trisulfides A new composition of matter corresponds to the formula Ax M(PS3)y wherein A is at least one Group Ia metal, x is a numerical value greater than zero but equal to or less than 6 divided by the valency of the element, M is a... | 09/20/1977 |