| Patents for C01G 33 - Compounds of niobium (1,435) |
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| 03/23/2000 | WO2000015555A1 Methods to partially reduce a niobium metal oxide and oxygen reduced niobium oxides |
| 03/02/2000 | WO1999037705A9 Block polymer processing for mesostructured inorganic oxide materials |
| 01/19/2000 | CN1048473C Process for the synthesis of crystalline ceramic powders of perovskite compounds |
| 01/05/2000 | EP0968319A1 Multiple vaporizer reagent supply system for chemical vapor deposition utilizing dissimilar precursor compositions |
| 12/28/1999 | US6007870 Dissolving crystalline ceramic powder in water so as to leave core portion of ceramic powder while heating; depositing coating of ceramic powder dissolved in the water on and around surfaces of core; firing to form shell around core cooling |
| 11/02/1999 | US5976624 Process for producing bismuth compounds, and bismuth compounds |
| 10/26/1999 | US5972096 Coating solutions for use in forming bismuth-based ferroelectric thin films |
| 10/05/1999 | US5962373 Method for producing mixed metal oxide compounds |
| 09/28/1999 | US5958367 Methods for preparing porous metal oxides |
| 07/29/1999 | WO1999037705A1 Block polymer processing for mesostructured inorganic oxide materials |
| 07/29/1999 | DE19752080A1 Multi-component oxide ceramic material |
| 07/20/1999 | US5925183 Method for producing layer-structured perovskite thin film of bismuth-based compounds having ferroelectric properties |
| 06/01/1999 | US5908802 Nonaqueous solution synthesis process for preparing oxide powders of lead zirconate titanate and related materials |
| 06/01/1999 | US5908489 Process for removing antimony from hydrofluoric acid solutions which contain Ta/Nb |
| 05/04/1999 | US5900223 Process for the synthesis of crystalline powders of perovskite compounds |
| 04/22/1999 | WO1999019408A1 Oxinitrided composition based on an alkaline earth and tantalum or on an alkaline earth and niobium, preparation methods and use as dyeing pigment |
| 04/13/1999 | US5894016 Reacting the mixture of tin, a second metal or metal sulfide with a superstoichiometric quantity of solid phase sulfur with ammonium or tin chloride as an exothermic reaction to form mixed sulfide or tin sulfide in pressureless condition |
| 03/16/1999 | US5882400 Method of producing a layer structure and the use of the method |
| 03/02/1999 | US5876503 Multiple vaporizer reagent supply system for chemical vapor deposition utilizing dissimilar precursor compositions |
| 02/03/1999 | EP0894779A1 Process for preparing ceramic powder |
| 02/03/1999 | EP0894155A1 Composition and process for fabricating metal oxide films |
| 01/27/1999 | EP0893515A1 Preconditioned crystals of lithium niobate and lithium tantalate and methods of preparing the same |
| 01/13/1999 | EP0666238B1 Metal oxide powder and process for producing the same |
| 01/12/1999 | US5858451 Process for production of solution-derived (Pb,La)(Nb,Sn,Zr,Ti)O3 thin films and powders |
| 01/12/1999 | US5858323 Reacting a combined lead- and niobium-complex liquid solution with a magnesium-alkyl solution |
| 12/30/1998 | CN1203567A Niobium and tantalum pentoxide compounds |
| 12/08/1998 | US5846505 Method for producing double metal oxide powder |
| 10/21/1998 | CN1040314C Metal oxide powder and process for producing same |
| 09/22/1998 | US5811153 Solutions containing reaction product of metal alkoxides, acetates or beta-diketone complexes with alcohols, carboxylic anhydrides, glycols, beta-diketones or dicarboxylic acid monoesters |
| 09/11/1998 | WO1998039269A1 Method for producing a perovskite ceramic with defined structure |
| 08/18/1998 | US5795537 Method of producing composite oxide ceramics |
| 08/04/1998 | US5788757 Solution of metal carboxylate in ester solvent, formation of strontium barium titantes, strontium bismuth tantalates and/or niobates, annealing |
| 07/29/1998 | EP0854841A1 Niobium and tantalum pentoxide compounds |
| 07/22/1998 | EP0854504A1 Coating solutions for use in forming bismuth-based ferro-electric thin films, and ferro-electric thin films, ferro-electric capacitors and ferro-electric memories formed with said coating solutions, as well as processes for production thereof |
| 07/22/1998 | EP0854503A1 Coating solutions for use in forming bismuth-based ferro-electric thin films, and ferro-electric thin films, ferro-electric capacitors and ferro-electric memories formed with said coating solutions, as well as processes for production thereof |
| 07/02/1998 | WO1998028466A1 Composition and process for fabricating metal oxide films |
| 06/30/1998 | US5772924 Calcined mixture |
| 06/04/1998 | WO1998023787A1 Multiple vaporizer reagent supply system for chemical vapor deposition utilizing dissimilar precursor compositions |
| 04/16/1998 | WO1998015500A1 Compositions and methods for preparing porous metal oxides |
| 04/16/1998 | CA2268090A1 Compositions and methods for preparing porous metal oxides |
| 03/17/1998 | US5728639 Recovery of spent catalyst |
| 03/04/1998 | EP0734355B1 Recovery of spent catalyst |
| 02/24/1998 | US5721182 Metal niobates and/or tantalates, their preparation and perovskites formed from them |
| 01/13/1998 | US5707599 Process for purifying tantalum oxide and other metal oxides |
| 11/20/1997 | DE19619228A1 Removing antimony from hydrofluoric acid solutions |
| 11/19/1997 | CN1165380A Ferroelectric element and method of producing the same |
| 11/12/1997 | EP0806396A1 Process for the preparation of metal disulfides and further processing thereof to dimetal trisulfides |
| 10/22/1997 | CN1162949A Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating |
| 09/23/1997 | US5670583 Ceramers from metal oxide cluster gel reacted with polymer |
| 09/17/1997 | EP0795898A2 Ferroelectric element and method of producing the same |
| 08/27/1997 | EP0790959A1 Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating |
| 08/05/1997 | US5654456 Precursors and processes for making metal oxides |
| 04/17/1997 | WO1997013724A1 Niobium and tantalum pentoxide compounds |
| 04/17/1997 | CA2234672A1 Niobium and tantalum pentoxide compounds |
| 04/15/1997 | US5620936 Tantalum and niobium salts |
| 03/05/1997 | EP0760400A2 Process for producing bismuth compounds, and bismuth compounds |
| 02/05/1997 | CN1033990C Metal-oxide super-conductive composition and mfg. method and usage thereof |
| 01/15/1997 | EP0665814B1 Precursors and processes for making metal oxides |
| 12/05/1996 | DE19519722A1 Pyrometallurgical prodn. of niobium oxide |
| 12/05/1996 | DE19519719A1 Continuous prodn. sparingly soluble hydrated oxide(s) of niobium, tantalum and titanium |
| 10/23/1996 | EP0543909B1 Preparation of anhydrous niobium and tantalum pentafluorides |
| 10/10/1996 | WO1996031434A1 Composition and method for producing hexagonally-packed mesoporous metal oxide |
| 10/08/1996 | US5562768 Controlled cooling of melt containing stoichiometric amounts of potassium, lithium and niobium oxides |
| 10/02/1996 | EP0734355A1 Recovery of spent catalyst |
| 10/02/1996 | EP0734354A1 Recovery of spent catalyst |
| 10/02/1996 | DE19611949A1 Producing composite material |
| 09/04/1996 | EP0729593A1 Method of producing a surface-layer structure, and use of the method |
| 09/04/1996 | CN1130155A Metal niobates and/or tanlatates, their preparation and perovskites formed from them |
| 08/14/1996 | CN1128733A Production of hydrated tantalum and/or niobium oxide and resultant tantalates and niobates |
| 07/02/1996 | US5532197 Composition system comprising a lithium neodymium titanium oxide, a calcium titanium oxide and a barium zinc niobium oxide in the claimed proportions |
| 07/02/1996 | US5531974 Flux grown, monosize oxide particles |
| 06/05/1996 | EP0714850A2 Method for producing double metal oxide powder |
| 05/28/1996 | US5520900 Graphite intercalation compound and oxidation |
| 05/23/1996 | WO1996015068A1 Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating |
| 05/23/1996 | CA2204910A1 Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating |
| 05/07/1996 | US5514822 Precursors and processes for making metal oxides |
| 04/18/1996 | DE4436392A1 Metal-niobate and/or tantalate used as materials for electro:ceramics, piezoceramics, etc. |
| 04/03/1996 | EP0649388A4 Metal oxide-polymer composites. |
| 02/14/1996 | EP0587672B1 Method of producing nanometer-sized oxide particles |
| 01/03/1996 | CN1114503A Metal oxide powder and process for producing the same |
| 12/07/1995 | WO1995032920A1 Method for the separation of titanium and niobium |
| 12/05/1995 | US5472477 Process for the preparation of finely divided metal and ceramic powders |
| 11/30/1995 | DE4417104A1 Hydrofluoric acid and metal oxide(s) mfd. and neutralised sludges from pickling processes |
| 10/25/1995 | CN2210890Y Metal device for preparation of niobium chloride |
| 08/30/1995 | EP0341266B1 Superconductivity in square-planar compound systems |
| 08/29/1995 | US5445806 Process for preparing fine powder of perovskite-type compound |
| 08/15/1995 | US5441670 Process for producing an electrically conductive mixed oxide of titanium and tantalum or niobium |
| 08/09/1995 | EP0666238A1 Metal oxide powder and process for producing the same |
| 08/09/1995 | EP0665814A1 Precursors and processes for making metal oxides. |
| 08/01/1995 | US5437848 Recovery of metal values from process residues |
| 06/22/1995 | WO1995016636A1 Recovery of spent catalyst |
| 06/22/1995 | WO1995016635A1 Recovery of spent catalyst |
| 05/26/1995 | WO1995014250A1 Method of producing a surface-layer structure, and use of the method |
| 05/18/1995 | DE4404374C1 Recovery and sepn of tantalum and niobium from materials contg. both |
| 04/26/1995 | EP0649388A1 Metal oxide-polymer composites |
| 04/19/1995 | EP0648710A1 Process for the preparation of fine monodispersed oxide powders, fine monodispersed oxide powder, ceramic composition and its use |
| 04/19/1995 | CN1101634A Process for the synthesis of crystalline ceramic powders of perovskite compounds |
| 04/12/1995 | EP0591459A4 Process of making niobium oxide. |
| 03/08/1995 | EP0641740A1 Process for the synthesis of crystalline ceramic powders of perovskite compounds |
| 02/16/1995 | WO1995004700A1 Metal oxide powder and process for producing the same |