Patents for C01G 41 - Compounds of tungsten (1,848)
07/2005
07/26/2005US6921836 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
07/12/2005US6916872 Drug delivery; improved refractive index, transparency to light, reflection, permeability, coercivity, magnetic hystereisis, breakdown voltage, biocompatability, and wear resistance
07/05/2005US6914032 Reacting water soluble compound of tin and copper; spray drying, roasting; forming oxide; reduction; heat conductivity, electroconductivity
06/2005
06/30/2005WO2005058758A1 Quasi-one-dimensional polymers based on the metal-chalcogen-halogen system
06/30/2005CA2548265A1 Quasi-one-dimensional polymers based on the metal-chalcogen-halogen system
06/23/2005WO2005056479A2 Synthesis of nanoparticles with a closed structure of metal chalcogens having a lamellar crystalographic structure and uses thereof
06/22/2005EP1543095A2 Spherical tungsten disulfide powder
06/15/2005EP1541528A1 Quasi-one-dimensional polymers based on the metal-chalcogen-halogen system
06/08/2005CN1623904A Process for preparing pure heteropolyblue
06/02/2005US20050118082 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores
05/2005
05/26/2005WO2005047206A1 Material with negative or low thermal expansion coefficient and method for producing same
05/26/2005US20050112055 Di-ruthenium-substituted polyoxometalate electrocatalyst and method of oxygen generation
05/24/2005US6896866 Method for purification of tungsten hexafluoride
05/17/2005CA2166288C Modified solid oxide catalyst and process for producing same
05/11/2005CN1613777A Preparation for nanometer anhydrous wolframic acid powder
04/2005
04/28/2005WO2005037932A1 Infrared shielding material microparticle dispersion, infrared shield, process for producing infrared shielding material microparticle, and infrared shielding material microparticle
04/21/2005US20050084608 Surface treatment; nanomaterial containing core and cladding; heat treatment
04/13/2005EP1522341A1 Precious metal-metal oxide composite cluster
04/13/2005EP1458897B1 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores
04/13/2005CN1196650C Reactors for producing inorganic fullerene-like tungsten disulfide hollow nanoparticles and nanotubes
04/07/2005WO2005031025A2 Preparation of amorphous sulfide sieves
04/05/2005US6874668 Telescoped multiwall nanotube and manufacture thereof
03/2005
03/24/2005US20050065026 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
03/16/2005EP1514909A2 Nanoparticle with excellent durability, and method of manufacturing the same
03/16/2005CN1594107A Method and apparatus for preparing blue tungsten oxide by ammonium paratungstate self-reduction
03/16/2005CN1192837C Method for preparing even tungsten-copper fake alloy
03/10/2005US20050051771 Nanoparticle with excellent durability, and method of manufacturing the same
03/09/2005EP1286919B1 Compounds derived from la 2?mo 2?o 9? and their use as ionic conductors
03/09/2005CN1191904C Tungsten-copper composite oxide powder and its preparing process
02/2005
02/15/2005US6855749 Polymer nanocomposite implants with enhanced transparency and mechanical properties for administration within humans or animals
02/10/2005US20050032636 heating molybdates or thiomolybdate salts in solvent-free pressurized gas environments to decompose the salts and form molecular sieves; pore size catalysts
02/10/2005US20050032625 Low thermal expansion materials
02/03/2005US20050025700 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
02/01/2005US6849109 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.
02/01/2005US6849104 Metalothermic reduction of refractory metal oxides
01/2005
01/26/2005CN1569625A Method for the production of metal carbides
01/20/2005US20050013943 Phosphor containing rare earth oxide with tungsten, molydbenum, niobium, tantalum oxide ; liquid crystal dispaly
01/19/2005CN1185733C Nonaqueous electrolyte secondary cell and positive electrode active material
01/18/2005US6844283 Zero thermal expansion material and practical component parts making use of the same
01/13/2005US20050008858 Composite mixed oxide; marking particles
01/13/2005US20050008557 Surface treatment; prewashing, stabilization; heating
01/11/2005US6841142 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
01/06/2005WO2004055228A3 Spherical tungsten disulfide powder
01/04/2005US6838198 Organic/inorganic-oxide multilayer materials
12/2004
12/30/2004US20040265208 Method for the production of metal carbides
12/30/2004US20040262435 post-processing of nanoscale powders of oxides, carbides, nitrides, borides, chalcogenides, metals, and alloys; to improve functional and processing characteristics for commercial applications
12/29/2004EP1491502A2 A method for producing nanoparticles through size-selective photoetching
12/29/2004CN1557724A Method for preparing tungsten disilicide powder
12/29/2004CN1557697A Method for preparing (NH4)2MoS4
12/29/2004CN1557696A Method for preparing (NH4)2WS4
12/23/2004DE10325487A1 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
12/21/2004US6833123 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
12/21/2004US6833083 Thermoelectric material and thermoelectric converting element using the same
12/21/2004US6832735 Post-processed nanoscale powders and method for such post-processing
12/14/2004US6830822 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
12/09/2004WO2004106230A1 Method for producing composite oxide of metal
12/02/2004WO2004103553A1 New metal containing compositions and their use as catalyst composition
12/02/2004CA2526479A1 Metal-containing compositions and their use as catalyst composition
12/01/2004CN1177763C Multi-metal oxide
11/2004
11/24/2004CN1548504A Prepn of tungsten disulfide lubricant
11/17/2004CN1547629A Method of making nanotube-based material with enhanced electron field emission properties
11/04/2004US20040218345 Products comprising nano-precision engineered electronic components
11/02/2004US6812178 For use in electronic materials, precision machine component parts, structural materials
11/02/2004US6811925 Composite lithium metal oxide
10/2004
10/14/2004WO2004088780A1 Tungsten-based electrocatalyst and fuel cell containing same
10/14/2004US20040204307 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
10/13/2004EP1465757A2 A thermal process involving cold rf irradiated liquid as a core method for producing nano-size particles
10/13/2004CN2647831Y Apparatus of preparing blue tungsten oxide by autoreduction
09/2004
09/23/2004US20040182284 Crystal mixed oxides of bismuth, tantalum, niobium, molybdenum, chromium, and/or tungsten; coatings for household appliances; heat resistance, stability, discoloration inhibition
09/22/2004EP1458897A1 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores
09/16/2004US20040180203 Nanomaterial compositions with distinctive shape and morphology
09/16/2004US20040178530 High volume manufacturing of nanoparticles and nano-dispersed particles at low cost
09/15/2004CN1166565C Process for preparing thiomolybdate for molybdenum separated from sodium tungstate solution containing molybdenum
09/08/2004EP1037940B1 Block polymer processing for mesostructured inorganic oxide materials
09/07/2004US6787122 Method of making nanotube-based material with enhanced electron field emission properties
09/02/2004US20040170820 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.
08/2004
08/26/2004US20040163491 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
08/25/2004CN1524022A Metalothermic reduction of refractory metal oxides
08/18/2004CN1162331C Synthesis of heteropolyacids
08/04/2004EP1441982A1 Water soluble luminescent nanoparticles
07/2004
07/29/2004WO2004063120A1 Low thermal expansion material
07/29/2004US20040145307 Red light emitting phosphor, its production and light emitting device
07/22/2004US20040139888 Containing nanofillers providing superior performance; refractive index, transparency reflection, resistivity, permittivity, permeability, coercivity, magnetic hysteresis, breakdown voltage; increased surface area, constrained domain sizes
07/08/2004DE19547798B4 Verfahren zur Herstellung von Wolfram-Kupfer-Mischoxiden A process for the production of tungsten-copper composite oxides
07/08/2004DE19547797B4 Verfahren zur Herstellung von Wolfram-Kupfer-Mischoxiden A process for the production of tungsten-copper composite oxides
07/01/2004WO2004055228A2 Spherical tungsten disulfide powder
07/01/2004CA2496506A1 Spherical tungsten disulfide powder
06/2004
06/30/2004CN1155522C Transition metal sulfied nano-pipe and preparation process and its application
06/10/2004WO2004048647A1 Topological crystal of transition metal chalcogenide and method of forming the same
06/08/2004US6746791 Nano-ionic products and devices
06/03/2004US20040105808 Reactors for producing inoraganic fullerene-like tungsten disulfide hollow nanoparticles and nanotubes
05/2004
05/19/2004EP1419213A1 Near uv excited phosphors
05/18/2004US6737463 Barium ferrite filler; magnetic tapes
05/13/2004US20040089410 Bulk synthesis of long nanotubes of transition metal chalcogenides
04/2004
04/27/2004US6726992 Nano-engineered phosphors and related nanotechnology
04/21/2004EP1409776A1 Method of making nanotube-based material with enhanced electron field emission properties
04/08/2004WO2003053647A9 A thermal process involving cold rf irradiated liquid as a core method for producing nano-size particles
04/08/2004US20040067355 Nanoscale powders dispersed on coarser carrier powders
04/07/2004EP1405890A1 Thermochromic material
04/01/2004US20040062708 Process for the synthesis of nanotubes of transition metal dichalcogenides
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