Patents for C01G 41 - Compounds of tungsten (1,848)
12/2002
12/12/2002US20020187387 Nano-ionic products and devices
12/11/2002EP1263682A2 Reactors for producing inorganic fullerene-like tungsten disulfide hollow nanoparticles and nanotubes
12/05/2002WO2002096559A1 Inorganic ion exchangers for removing contaminant metal ions from liquid streams
12/05/2002CA2448865A1 Inorganic ion exchangers for removing contaminant metal ions from liquid streams
11/2002
11/28/2002US20020176987 Ink comprising: a non-stoichiometric non-equilibrium nanostructured material; device such as electronics using such a material
11/27/2002CN1381599A Semi-dry desorption process for preparing ammonium paratungstate by ion exchange method
11/21/2002WO2002092721A1 Thermochromic material
11/21/2002US20020172826 Nanoscale catalyst compositions from complex and non-stoichiometric compositions
11/21/2002US20020170593 Non-stoichiometric non- equilibrium material, and the material is a nanostructured material.
11/14/2002WO2002090024A1 Metalothermic reduction of refractory metal oxides
11/14/2002US20020168522 Nanotechnology for electronic and opto-electronic devices
11/13/2002EP1255879A1 Method and composition for the prevention of high temperature corrosion due to alkali sulfates and alkali chlorides
11/12/2002US6478845 Boron addition for making potassium-doped tungsten
11/07/2002US20020164482 Nanotechnology for biomedical products
11/06/2002CN1377980A Process for preparing high purity ammonium para-tungstate using hihg-molybdenum tungsten ore
10/2002
10/31/2002US20020160191 Low maturing temperature porcelain compositions useful for the fabrication of dental restorations.
10/31/2002US20020160190 Nanotechnology for magnetic components
10/30/2002CN1376637A Non-metering tungsten oxide and its preparing process and usage
10/09/2002CN1092148C Single crystals of lead tungstate
09/2002
09/25/2002CN1091429C Process for preparing thiomolybdate by separating tungsten from molybdenum
09/05/2002US20020121700 Novel organic/inorganic-oxide multilayer materials
09/04/2002EP1140703B1 Synthesis of heteropolyacids
08/2002
08/21/2002EP1232226A1 Synthesis of nanoparticles
08/08/2002WO2002061896A1 Double, optionally doped, potassium-ytterbium tungstate single crystal, production method therefor and applications
08/08/2002US20020104599 Sol-gel process; forming a solution containing dissolved metal salts, and adding a proton scavenger (such as an epoxide) to the solution for inducing and controlling gelation.
08/08/2002CA2437101A1 Potasium ytterbium double wolframate single crystal, optionally doped, procedure for its production and applications
08/06/2002US6428765 Hydrorefining catalysts used for reforming, aromatization, transalkylation, isomerization and dehydrogenation
07/2002
07/18/2002DE10148055A1 Electroconductive pigment, used for pigmenting lacquer, printing ink, plastics system or coating, is mixed oxide based on zinc and/or tin and doped with tungsten and/or molybdenum, optionally as coating on substrate
07/04/2002WO2002051539A1 Crystalline multinary metal oxide compositions, process for preparing and processes for using the composition
06/2002
06/27/2002US20020079476 Applications and devices based on nanostructured non-stoichiometric substances
06/19/2002CN1354044A Method for recovering heteropolyacid catalyst
06/13/2002US20020070426 Telescoped multiwall nanotube and manufacture thereof
06/06/2002US20020066338 Metalothermic reduction of refractory metal oxides
05/2002
05/28/2002US6395241 Process for recovering the carbide metal from metal carbide scrap
05/23/2002WO2002041419A1 Nonaqueous electrolyte secondary cell and positive electrode active material
05/21/2002US6391496 Composite oxide active material; better charge-discharge cycles
05/15/2002EP0963359B1 Method for making submicrometer transition metal carbonitrides
05/14/2002US6387560 Nanostructured solid electrolytes and devices
05/10/2002WO2002036495A1 Process for recovering the carbide metal from metal carbide scrap
05/10/2002WO2002036494A1 Transition metal oxide compositions
05/09/2002US20020055033 Nanostructured deposition and devices
05/09/2002US20020054847 Synthesis of heteropolyacids
05/07/2002US6384534 Ceramic emissive mixture for cathode coatings prepared by mixing barium carbonate, tantalum oxide and at least calcium carbonate and tungsten oxide powders; sintering, milling and mixing with a binder to form a suspension;
05/07/2002US6383685 Composite tungsten oxide includes copper, vanadium, chromium, manganese, iron, cobalt, and/or nickel; rutile crystal structure; charging/discharging cycle
05/07/2002US6383684 Composite tungsten oxide includes copper, vanadium, chromium, manganese, iron, cobalt, and/or nickel; charging/discharging cycle
05/02/2002WO2002008120A3 Telescoped multiwall nanotube and manufacture thereof
05/02/2002US20020051883 Processing and manufacturing methods enabled using non-stoichiometric nanomaterials
05/01/2002CN1083802C Method for removing molybdenum from tungstate solution
04/2002
04/23/2002US6375708 W-cu-ni alloy formed by direct sintering of a powder blend which eliminates the formation of brittle intermetallics and slumping
04/18/2002WO2002030814A1 A process for the synthesis of nanotubes of transition metal dichalcogenides
04/18/2002US20020044908 Method for liquid chromate ion and oxy-metal ions removal and stabilization
03/2002
03/28/2002WO2001066462A3 Reactors for producing inorganic fullerene-like tungsten disulfide hollow nanoparticles and nanotubes
03/27/2002EP1190988A2 Bismuth-containing laser markable compositions and methods of making and using same
03/27/2002CN1081486C Multimetal oxides
03/21/2002DE10044986A1 Nanokristallines Metalloxidpulver, Verfahren zu seiner Herstellung und Verwendung Nanocrystalline metal oxide powder, process for its preparation and use
03/19/2002US6358307 Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating
03/14/2002WO2002020696A1 Synthesis of nanoparticles
03/14/2002WO2002020695A1 Doped nanoparticles
03/14/2002WO2002020407A1 Nanocrystalline metal oxide powders-production and application methods
03/14/2002WO2001074484A3 Transition metal carbides, nitrides and borides and their oxygen containing analogs useful as water gas shift catalysts
02/2002
02/21/2002US20020021998 Controlling oxygen partial pressure
02/20/2002EP0948671B1 Method for preparation of metal intercalated fullerene-like metal chalcogenides
02/07/2002US20020014182 For use in electrical devices, magnetic devices, optical devices, biomedical devices, and electrochemical devices
02/06/2002EP1177153A1 Bulk synthesis of long nanotubes of transition metal chalcogenides
02/06/2002CN1334783A Synthesis of heteropolyacids
02/05/2002US6344271 Materials and products using nanostructured non-stoichiometric substances
01/2002
01/31/2002WO2002008120A2 Telescoped multiwall nanotube and manufacture thereof
01/31/2002US20020013221 Water gas shift catalysts for use in producing hydrogen for chemical processing and petroleum refining, and reducing the carbon monoxide content of feeds to fuel cells; highly active, durable, and sulfur tolerant catalyst
01/16/2002CN1331760A Method for extracting anions of IVB to VIII metals using alkyl-substituted 1,3-diaminopropanes
01/09/2002CN1329956A Tungsten-copper composite powder
01/09/2002CN1329955A Tungsten-copper composite powder
11/2001
11/01/2001US20010035042 Sensors for oxidizing gases
10/2001
10/25/2001WO2001079827A1 Sensors for oxidizing gases
10/24/2001EP0756718B1 Electrochromic thin-film systems and components thereof
10/18/2001WO2001077022A1 Compounds derived from la2mo2o9 and their use as ionic conductors
10/17/2001EP1144699A1 Method for extracting anions of ivb to viii metals using alkyl-substituted 1,3-diaminopropanes
10/11/2001WO2001074484A2 Transition metal carbides, nitrides and borides and their oxygen containing analogs useful as water gas shift catalysts
10/10/2001EP1140703A1 Synthesis of heteropolyacids
09/2001
09/27/2001WO2001070631A1 Porous, doped titanium oxides as selective oxidation and dehydration catalysts
09/27/2001DE10013934A1 Porous mixed oxides, useful for the selective oxidation of hydrocarbons, contain titanium dioxide and an oxide that is uniformly dispersed and domain free
09/26/2001CN1071716C Process for preparing pure alkali metal tungstate and/or ammonium tungstate solutions
09/26/2001CN1071715C Process for producing pure ammonium metallates
09/26/2001CN1071714C Sodium tungstate preparation process
09/13/2001WO2001066462A2 Reactors for producing inorganic fullerene-like tungsten disulfide hollow nanoparticles and nanotubes
09/05/2001CN1070459C Composition oxide having oxygen absorbing and desorbing capability and method for preparing same
08/2001
08/16/2001EP0832040B1 Process for producing pure ammonium metallates
07/2001
07/25/2001EP1118403A2 Tungsten-copper composite powder
07/25/2001CN1068909C Tungsten-copper composite powder
07/18/2001EP1115660A1 Solid-state gas sensors and compounds therefor
06/2001
06/21/2001WO2001044112A1 Method for purification of tungsten hexafluoride
06/20/2001EP1108680A2 Electron emissive material for fluorescent lamp electrodes
05/2001
05/30/2001CN1066423C Composite oxide with ability of oxygen absorption and desorption
05/30/2001CN1066418C Process for preparing metatungstic acid solution
05/16/2001CN1295499A Multi-metal oxide compounds
05/08/2001US6228904 Nanostructured fillers and carriers
04/2001
04/25/2001EP1094089A1 Electrolyte for electrochromic systems
04/25/2001CN1292311A Electric contactor and alloy for electrode, preparing method thereof
04/17/2001US6217843 Heating metal compound with water in vacuum
04/11/2001EP1091009A2 Alloy for electrical contacts and electrodes and method of making
04/11/2001EP0832041B1 Sodium tungstate preparation process
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