Patents
Patents for C01B 19 - Selenium; Tellurium; Compounds thereof (2,563)
07/1998
07/22/1998EP0729394B1 Making quantum dot particles of uniform size
07/08/1998CN1186770A Method of solution growing semiconductor film
07/07/1998US5776424 Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with monovalen inorganic anions
07/01/1998EP0850194A1 Process for preparing a nanocrystalline material
06/1998
06/25/1998WO1998019351A3 Nanostructured ion conducting solid electrolytes
06/17/1998CN1184776A Method for preparing active and elementary selenium
05/1998
05/14/1998WO1998019963A1 Synthesis of metal chalcogenide quantum dots from aqueous media
05/07/1998WO1998019351A2 Nanostructured ion conducting solid electrolytes
03/1998
03/17/1998US5728366 Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with monovalent organic anions
03/17/1998US5728365 Reacting divalent metal compound and trivalent metal oxide powder in aqueous suspension to form double hydroxide, contacting with acid or salt of divalent inorganic anion to form intercalated layered double hydroxide, separating
03/17/1998US5728364 Two powder synthesis of hydrotalcite and hydrotalcite like compounds
03/17/1998US5728363 React trivalent metal oxide powder with divalent metal compound and react intermediate formed with anion source, separation
03/12/1998WO1998009753A1 Integrated thermal process and apparatus for the continuous synthesis of nanoscale powders
03/12/1998CA2263902A1 Integrated thermal process and apparatus for the continuous synthesis of nanoscale powders
03/11/1998EP0828299A2 Compound semiconductor and thin film solar cell
03/04/1998EP0779879A4 Very high temperature and atmospheric pressure superconducting compositions and methods of making and using same
01/1998
01/27/1998US5711803 Preparation of a semiconductor thin film
01/15/1998DE19628357A1 Production of nanocrystalline metal sulphide or (sulpho)selenide
01/06/1998US5705695 Quaternary Zintl composition (Et4 N)4 Au(Ag1-x Aux)2 Sn2 Te9 !
11/1997
11/27/1997WO1997044278A1 Bulk synthesis of inorganic fullerene-like structures of metal chalcogenides
11/19/1997EP0807457A1 Process for removing selenium from a selenium ion containing liquid
10/1997
10/29/1997EP0724775A4 RECRYSTALLIZATION METHOD TO SELENIZATION OF THIN-FILM Cu(In,Ga)Se2 FOR SEMICONDUCTOR DEVICE APPLICATIONS
10/29/1997EP0694209A4 ENHANCED QUALITY THIN FILM Cu(In,Ga)Se 2 FOR SEMICONDUCTOR DEVICE APPLICATIONS BY VAPOR-PHASE RECRYSTALLIZATION
06/1997
06/25/1997EP0779879A1 Very high temperature and atmospheric pressure superconducting compositions and methods of making and using same
06/11/1997EP0778328A2 Colour picture screen with contrast improving pigment
06/04/1997EP0776317A1 Two powder synthesis of hydrotalcite and hydrotalcite-like compounds
04/1997
04/08/1997US5618471 Alkali metal quaternary chalcogenides and process for the preparation thereof
04/03/1997WO1997012082A1 Preparation of a semiconductor thin film
04/03/1997DE19639444A1 Removal of selenium from effluent by adding reducing and neutralising agents
03/1997
03/25/1997US5614128 Nonlinear optical transmission
03/20/1997WO1997010175A1 Process for preparing a nanocrystalline material
03/18/1997CA2044321C Process for controlling alloy fractionation
03/06/1997WO1997007886A1 Manganiferous polyoxometalates, synthesis and use thereof
03/06/1997CA2230078A1 Manganese-containing polyoxometallates synthesis and use
03/05/1997EP0759888A1 Synthetic meixnerite product and method
02/1997
02/27/1997DE19530787A1 Mangan enthaltende Polyoxometallate, Synthese und Verwendung Manganese-containing polyoxometalates, synthesis and use
11/1996
11/28/1996WO1996037297A1 Catalysts for the selective oxidation of organic substrates and process for producing the same
11/28/1996DE19519004A1 Neue selen- und rutheniumhaltige Metalloxidkatalysatoren sowie ein Verfahren zu ihrer Herstellung und ihre Verwendung New selenium and ruthenium metal oxide catalysts and a process for their preparation and their use
11/26/1996US5578286 Reacting magnesium compound and alumina to form meixnerite intermediate; reacting with di- or polycarboxylate
11/12/1996US5574281 Sensing device for incorporating thermally bistable material
10/1996
10/08/1996US5563730 Thallium arsenic sulfide crystals (t13 AsS3) high efficiency nonlinear optical applications
09/1996
09/04/1996EP0729394A1 Making quantum dot particles of uniform size
08/1996
08/22/1996WO1996025768A1 METHOD OF FABRICATING HIGH-EFFICIENCY Cu(In,Ga)(Se,S)2 THIN FILMS FOR SOLAR CELLS
08/07/1996EP0724775A1 RECRYSTALLIZATION METHOD TO SELENIZATION OF THIN-FILM Cu(In,Ga)Se2 FOR SEMICONDUCTOR DEVICE APPLICATIONS
07/1996
07/02/1996US5531936 Sulfides or selenides for optical transmisson
06/1996
06/11/1996US5524571 Method for synthesizing compound semiconductor polycrystals and apparatus therefor
06/04/1996USH1540 Silver dyprosium diselenide; photoelectricity
05/1996
05/29/1996EP0713413A1 Preparation of high purity elements
05/07/1996US5514361 Magnesium aluminum hydroxide hydrates, reduced carbonate contamination
05/07/1996US5513834 Preparation of high purity elements
04/1996
04/23/1996US5510929 Solid solution crystals of Tl3 AsSe3 and Tl3 AsS3 for high efficiency optical applications
04/09/1996US5506426 Chalcopyrite compound, containing groups ib, 3, 5 and 7 elements
03/1996
03/14/1996WO1996007614A1 Very high temperature and atmospheric pressure superconducting compositions and methods of making and using same
02/1996
02/29/1996WO1996006454A1 RECRYSTALLIZATION METHOD TO SELENIZATION OF THIN-FILM Cu(In,Ga)Se2 FOR SEMICONDUCTOR DEVICE APPLICATIONS
02/22/1996WO1996005140A1 Two powder synthesis of hydrotalcite and hydrotalcite-like compounds
01/1996
01/31/1996EP0694209A1 ENHANCED QUALITY THIN FILM Cu(In,Ga)Se 2 FOR SEMICONDUCTOR DEVICE APPLICATIONS BY VAPOR-PHASE RECRYSTALLIZATION
11/1995
11/09/1995WO1995029874A1 Synthetic meixnerite product and method
11/09/1995CA2189020A1 Synthetic meixnerite product and method
10/1995
10/26/1995WO1995028511A1 Method and apparatus for removal of selenium from solution
10/17/1995US5458867 Process for the chemical preparation of bismuth telluride
10/17/1995US5458865 Fusion
09/1995
09/27/1995CN1109021A Wet process for extracting refined tellurium from primary tellurium ore
09/19/1995CA1337019C Biorecovery of selenium
08/1995
08/23/1995CN1107085A Finely-divided metal, alloy and metal compound powders
08/15/1995US5441897 Method of fabricating high-efficiency Cu(In,Ga)(SeS)2 thin films for solar cells
07/1995
07/25/1995US5436204 Recrystallization method to selenization of thin-film Cu(In,Ga)Se2 for semiconductor device applications
07/12/1995EP0662251A1 Layered crystalline material capable of high guest loading
06/1995
06/06/1995US5422304 Forming transparent electrode, and thin film of chalcopyrite compouds by sputtering, and using ion beam or molecular beam; doping chalcopyrite film to form a homojunction
05/1995
05/26/1995WO1995013891A1 Making quantum dot particles of uniform size
05/26/1995CA2176569A1 Making quantum dot particles of uniform size
05/03/1995EP0650791A1 Fine particles of metals, alloys and metal compounds
05/03/1995CA2134631A1 Finely divided metal, alloy and metal compound powders
03/1995
03/08/1995EP0568524B1 Composite element comprising a titanium chalcogen or oxychalcogen layer, suitable in particular for use as a positive electrode in a thin-layer fuel cell
02/1995
02/23/1995WO1995005228A1 Preparation of high purity elements
02/23/1995CA2168229A1 Preparation of high purity elements
01/1995
01/31/1995CA1334137C Reduction of selenium alloy fractionation
01/10/1995US5380377 Method of making sulfide alloys exhibiting thermal bistability
01/03/1995US5378448 Process for removing selenium from sulfur
12/1994
12/15/1994DE4337336C1 Finely divided metal, alloy and metal compound powders
12/13/1994US5372798 Fullerene compositions and preparation
10/1994
10/27/1994WO1994024696A1 Enhanced quality thin film cu(in,ga)se2 for semiconductor device applications by vapor-phase recrystallization
10/18/1994US5356839 Enhanced quality thin film Cu(In,Ga)Se2 for semiconductor device applications by vapor-phase recrystallization
09/1994
09/06/1994CA1331833C Process for manufacture of composite oxide
08/1994
08/02/1994US5334359 Apparatus for production of sparingly water-soluble salt crystal grains
07/1994
07/19/1994US5330708 In particular, metal-semiconductor phase transition with hysteresis as a function of temperature
06/1994
06/23/1994DE4343497A1 Sensor device for gas burner regulating system
06/21/1994US5322600 Method and apparatus for removal of selenium from solution
05/1994
05/24/1994US5314714 Process for increasing the density and improving the homogeneity of Chevrel phase powders and Chevrel phase wire obtained using said process
02/1994
02/15/1994CA1327046C Tellurium and selenium compounds for the induction of in vivo and in vitro production of cytokines
01/1994
01/18/1994US5279805 Gas storage using transition metal dichalcogenides
12/1993
12/22/1993EP0574548A1 Method and apparatus for the purification and control of the composition of non-stoichiometric and stoichiometric crystalline compounds
12/21/1993US5271831 Selenate removal from waste water
11/1993
11/23/1993US5264133 Removal of selenium from aqueous media
11/11/1993WO1993022236A1 Gas storage using transition metal dichalcogenides
11/09/1993CA2003860C Rechargeable non-aqueous cell
07/1993
07/14/1993CN1074249A Layered crystalline material capable of high guest loading
06/1993
06/10/1993WO1993008981A3 Layered crystalline material capable of high guest loading
06/08/1993US5217750 Tumbling selenium alloy particles in a container; removing and compressing
05/1993
05/13/1993WO1993008981A2 Layered crystalline material capable of high guest loading
05/13/1993CA2122369A1 Layered crystalline material capable of high guest loading
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