Patents for C01G 41 - Compounds of tungsten (1,848) |
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07/26/2005 | US6921836 Oxidation catalysts comprising blends of molybdenum, vanadium, copper and antimony oxides and optionally other metal oxides, used for gas phase oxidation of acrolein to form acrylic acid |
07/12/2005 | US6916872 Drug delivery; improved refractive index, transparency to light, reflection, permeability, coercivity, magnetic hystereisis, breakdown voltage, biocompatability, and wear resistance |
07/05/2005 | US6914032 Reacting water soluble compound of tin and copper; spray drying, roasting; forming oxide; reduction; heat conductivity, electroconductivity |
06/30/2005 | WO2005058758A1 Quasi-one-dimensional polymers based on the metal-chalcogen-halogen system |
06/30/2005 | CA2548265A1 Quasi-one-dimensional polymers based on the metal-chalcogen-halogen system |
06/23/2005 | WO2005056479A2 Synthesis of nanoparticles with a closed structure of metal chalcogens having a lamellar crystalographic structure and uses thereof |
06/22/2005 | EP1543095A2 Spherical tungsten disulfide powder |
06/15/2005 | EP1541528A1 Quasi-one-dimensional polymers based on the metal-chalcogen-halogen system |
06/08/2005 | CN1623904A Process for preparing pure heteropolyblue |
06/02/2005 | US20050118082 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores |
05/26/2005 | WO2005047206A1 Material with negative or low thermal expansion coefficient and method for producing same |
05/26/2005 | US20050112055 Di-ruthenium-substituted polyoxometalate electrocatalyst and method of oxygen generation |
05/24/2005 | US6896866 Method for purification of tungsten hexafluoride |
05/17/2005 | CA2166288C Modified solid oxide catalyst and process for producing same |
05/11/2005 | CN1613777A Preparation for nanometer anhydrous wolframic acid powder |
04/28/2005 | WO2005037932A1 Infrared shielding material microparticle dispersion, infrared shield, process for producing infrared shielding material microparticle, and infrared shielding material microparticle |
04/21/2005 | US20050084608 Surface treatment; nanomaterial containing core and cladding; heat treatment |
04/13/2005 | EP1522341A1 Precious metal-metal oxide composite cluster |
04/13/2005 | EP1458897B1 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores |
04/13/2005 | CN1196650C Reactors for producing inorganic fullerene-like tungsten disulfide hollow nanoparticles and nanotubes |
04/07/2005 | WO2005031025A2 Preparation of amorphous sulfide sieves |
04/05/2005 | US6874668 Telescoped multiwall nanotube and manufacture thereof |
03/24/2005 | US20050065026 formed by mixing solutions having precious metal clusters with solutions having metal oxide clusters, then providing protective coatings on the surfaces; catalyst for cleaning an exhaust gases |
03/16/2005 | EP1514909A2 Nanoparticle with excellent durability, and method of manufacturing the same |
03/16/2005 | CN1594107A Method and apparatus for preparing blue tungsten oxide by ammonium paratungstate self-reduction |
03/16/2005 | CN1192837C Method for preparing even tungsten-copper fake alloy |
03/10/2005 | US20050051771 Nanoparticle with excellent durability, and method of manufacturing the same |
03/09/2005 | EP1286919B1 Compounds derived from la 2?mo 2?o 9? and their use as ionic conductors |
03/09/2005 | CN1191904C Tungsten-copper composite oxide powder and its preparing process |
02/15/2005 | US6855749 Polymer nanocomposite implants with enhanced transparency and mechanical properties for administration within humans or animals |
02/10/2005 | US20050032636 heating molybdates or thiomolybdate salts in solvent-free pressurized gas environments to decompose the salts and form molecular sieves; pore size catalysts |
02/10/2005 | US20050032625 Low thermal expansion materials |
02/03/2005 | US20050025700 Forming tungsten trioxide hydrate nanoparticles; platelet morphology; rapid precipitation; adding precursor solution containing ammonium paratungstate and concentrated hydrochloric acid to water; hydrogen reduction to tungsten dioxide; simple, scalable, inexpensive |
02/01/2005 | US6849109 Multimetallic nanofillers with domain size less than 100 nanometers exhibiting transparency to visible light that differs by more than 20% as compared to fillers having a domain size of at least one micron. |
02/01/2005 | US6849104 Metalothermic reduction of refractory metal oxides |
01/26/2005 | CN1569625A Method for the production of metal carbides |
01/20/2005 | US20050013943 Phosphor containing rare earth oxide with tungsten, molydbenum, niobium, tantalum oxide ; liquid crystal dispaly |
01/19/2005 | CN1185733C Nonaqueous electrolyte secondary cell and positive electrode active material |
01/18/2005 | US6844283 Zero thermal expansion material and practical component parts making use of the same |
01/13/2005 | US20050008858 Composite mixed oxide; marking particles |
01/13/2005 | US20050008557 Surface treatment; prewashing, stabilization; heating |
01/11/2005 | US6841142 Heating a transition metal material in the presence of water vapor in a vacuum apparatus or electron beam evaporating to obtain nanoparticles of the transition metal oxide as long as 0.3 microns |
01/06/2005 | WO2004055228A3 Spherical tungsten disulfide powder |
01/04/2005 | US6838198 Organic/inorganic-oxide multilayer materials |
12/30/2004 | US20040265208 Method for the production of metal carbides |
12/30/2004 | US20040262435 post-processing of nanoscale powders of oxides, carbides, nitrides, borides, chalcogenides, metals, and alloys; to improve functional and processing characteristics for commercial applications |
12/29/2004 | EP1491502A2 A method for producing nanoparticles through size-selective photoetching |
12/29/2004 | CN1557724A Method for preparing tungsten disilicide powder |
12/29/2004 | CN1557697A Method for preparing (NH4)2MoS4 |
12/29/2004 | CN1557696A Method for preparing (NH4)2WS4 |
12/23/2004 | DE10325487A1 Thermal treatment of precursor material of catalytically active material, for partial gas-phase oxidation of acrolein to acrylic acid, involves circulating gas stream flowing through rotary tube furnace |
12/21/2004 | US6833123 Contacting highly water soluble barium compounds with liquid waste containing chromate or other oxy-metal ions to form low water soluble barium/oxy-metal compounds which can be filtered out on precipitation |
12/21/2004 | US6833083 Thermoelectric material and thermoelectric converting element using the same |
12/21/2004 | US6832735 Post-processed nanoscale powders and method for such post-processing |
12/14/2004 | US6830822 A pigment with modified properties because of the powder size being below 100 nanometers. Blue, yellow and brown pigments are illustrated. Nanoscale coated, un-coated, whisker inorganic fillers are included. Stoichiometric and |
12/09/2004 | WO2004106230A1 Method for producing composite oxide of metal |
12/02/2004 | WO2004103553A1 New metal containing compositions and their use as catalyst composition |
12/02/2004 | CA2526479A1 Metal-containing compositions and their use as catalyst composition |
12/01/2004 | CN1177763C Multi-metal oxide |
11/24/2004 | CN1548504A Prepn of tungsten disulfide lubricant |
11/17/2004 | CN1547629A Method of making nanotube-based material with enhanced electron field emission properties |
11/04/2004 | US20040218345 Products comprising nano-precision engineered electronic components |
11/02/2004 | US6812178 For use in electronic materials, precision machine component parts, structural materials |
11/02/2004 | US6811925 Composite lithium metal oxide |
10/14/2004 | WO2004088780A1 Tungsten-based electrocatalyst and fuel cell containing same |
10/14/2004 | US20040204307 Mixing two double oxides each containing tungsten or molyb-denum combined with alkali metal earth for one and zirconium or hafnium for other; precision, performance; high frequency circuits |
10/13/2004 | EP1465757A2 A thermal process involving cold rf irradiated liquid as a core method for producing nano-size particles |
10/13/2004 | CN2647831Y Apparatus of preparing blue tungsten oxide by autoreduction |
09/23/2004 | US20040182284 Crystal mixed oxides of bismuth, tantalum, niobium, molybdenum, chromium, and/or tungsten; coatings for household appliances; heat resistance, stability, discoloration inhibition |
09/22/2004 | EP1458897A1 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores |
09/16/2004 | US20040180203 Nanomaterial compositions with distinctive shape and morphology |
09/16/2004 | US20040178530 High volume manufacturing of nanoparticles and nano-dispersed particles at low cost |
09/15/2004 | CN1166565C Process for preparing thiomolybdate for molybdenum separated from sodium tungstate solution containing molybdenum |
09/08/2004 | EP1037940B1 Block polymer processing for mesostructured inorganic oxide materials |
09/07/2004 | US6787122 Method of making nanotube-based material with enhanced electron field emission properties |
09/02/2004 | US20040170820 Multimetallic nanofillers with domain size less than 100 nanometers exhibiting transparency to visible light that differs by more than 20% as compared to fillers having a domain size of at least one micron. |
08/26/2004 | US20040163491 feeding a blend of the oxide and reducing agent directly into a reactor to achieve a self-sustaining, highly exothermic reaction; use of blend eliminates the problems associated with generation and transport of gaseous metal to the reaction zone |
08/25/2004 | CN1524022A Metalothermic reduction of refractory metal oxides |
08/18/2004 | CN1162331C Synthesis of heteropolyacids |
08/04/2004 | EP1441982A1 Water soluble luminescent nanoparticles |
07/29/2004 | WO2004063120A1 Low thermal expansion material |
07/29/2004 | US20040145307 Red light emitting phosphor, its production and light emitting device |
07/22/2004 | US20040139888 Containing nanofillers providing superior performance; refractive index, transparency reflection, resistivity, permittivity, permeability, coercivity, magnetic hysteresis, breakdown voltage; increased surface area, constrained domain sizes |
07/08/2004 | DE19547798B4 Verfahren zur Herstellung von Wolfram-Kupfer-Mischoxiden A process for the production of tungsten-copper composite oxides |
07/08/2004 | DE19547797B4 Verfahren zur Herstellung von Wolfram-Kupfer-Mischoxiden A process for the production of tungsten-copper composite oxides |
07/01/2004 | WO2004055228A2 Spherical tungsten disulfide powder |
07/01/2004 | CA2496506A1 Spherical tungsten disulfide powder |
06/30/2004 | CN1155522C Transition metal sulfied nano-pipe and preparation process and its application |
06/10/2004 | WO2004048647A1 Topological crystal of transition metal chalcogenide and method of forming the same |
06/08/2004 | US6746791 Nano-ionic products and devices |
06/03/2004 | US20040105808 Reactors for producing inoraganic fullerene-like tungsten disulfide hollow nanoparticles and nanotubes |
05/19/2004 | EP1419213A1 Near uv excited phosphors |
05/18/2004 | US6737463 Barium ferrite filler; magnetic tapes |
05/13/2004 | US20040089410 Bulk synthesis of long nanotubes of transition metal chalcogenides |
04/27/2004 | US6726992 Nano-engineered phosphors and related nanotechnology |
04/21/2004 | EP1409776A1 Method of making nanotube-based material with enhanced electron field emission properties |
04/08/2004 | WO2003053647A9 A thermal process involving cold rf irradiated liquid as a core method for producing nano-size particles |
04/08/2004 | US20040067355 Nanoscale powders dispersed on coarser carrier powders |
04/07/2004 | EP1405890A1 Thermochromic material |
04/01/2004 | US20040062708 Process for the synthesis of nanotubes of transition metal dichalcogenides |