Patents
Sitemap › C01 - Inorganic chemistry › C01B - Non-metallic elements; Compounds thereof › C01B 21 - Nitrogen; Compounds thereof
Patents for C01B 21 - Nitrogen; Compounds thereof (10,781)
07/2003
07/17/2003US20030133849 Catalytic oxidation of ammonia across the cross section of a vessel whose diameter is a multiple of the tube diameter
07/16/2003EP1222147B1 Method and device for producing powders that consist of substantially spherical particles
07/10/2003WO2003055793A1 A method for manufacturing a nanostructure in-situ, and in-situ manufactured nanostructure devices
07/10/2003WO2002009852A9 System and process for removal of pollutants from a gas stream
07/10/2003US20030129126 Method for reversible storage of hydrogen and materials for hydrogen storage
07/10/2003US20030129118 Extractive distillation
07/10/2003US20030126948 Processing precursor at a temperature greater than 2000 degrees C in a gas comprising oxygen and transforming precursor to fine metal powder
07/09/2003EP1325939A2 Process for preparing co-gels having polyazacycloalkane moieties and their use
07/09/2003EP1324961A2 Silicon-boron-carbon-nitrogen ceramics and precursor compounds, methods for the production and use thereof
07/09/2003EP1324815A1 Gas permeation device and method
07/08/2003US6589899 Instantaneously pressing a press-molded product made of a mixture of a copper powder and a powder of a low pressure phase beta sialon of chemical formula Si6-x-AlxOxN8-x by an impulse wave to create a phase transition from beta to spinel
07/08/2003US6589368 High melting point metal based alloy material having high toughness and strength
07/08/2003CA2088873C Process for the thermochemical decomposition of dinitrogen oxide
07/03/2003WO2003053992A2 Industrially applicable process for the sulfamoylation of alcohols and phenols
07/03/2003WO2003053913A1 Ammoxidation of hydrocarbons and hydrogenated metallo oxynitride catalysts therefor
07/03/2003WO2003053848A1 Reversible storage of hydrogen using doped alkali metal aluminum hydrides
07/03/2003US20030124050 Controlling temperature, times; agglomeration powders
07/03/2003US20030124046 Method and apparatus for reducing nitrous oxide
07/03/2003US20030124043 Liquid phase transformation
07/03/2003CA2471362A1 Reversible storage of hydrogen using doped alkali metal aluminum hydrides
07/02/2003EP1051422B1 Silica gel incorporating polyazacycloalkane structural units
07/02/2003CN1113036C Method for preparing highly pure aqueous hydroxylamino solutions
06/2003
06/26/2003US20030118501 Concurrent grinding, mixing with waterproofing agent
06/25/2003EP1056713B1 Method for producing aqueous hydroxylamine solutions which are substantially free of metal ions
06/19/2003US20030113631 Intermetallic lithium/transition metal pnictide phase is depicted by formula LixMyPn4 (M=a metal of one of the columns iva and va of the periodic table, Pn= a pnictogene selected from nitrogen, phosphorus, arsenic and antimony)
06/19/2003US20030113537 Nitric acid-based salt granule and aggregate thereof
06/18/2003EP1192115B1 Dinitramide based liquid mono-propellants
06/18/2003EP0979209B1 Stabilized hydroxylamine solutions
06/18/2003CN1424249A Method and apparatus for producing silicon nitride or ferro silicon nitride by low pressure combustion
06/18/2003CN1111641C Exhaust purifier of IC engine
06/17/2003US6580051 Direct and efficient conversion of ceramic material
06/17/2003US6579805 In situ chemical generator and method
06/17/2003US6579573 Dispersing ceramics, cermets or metals in liquids using sound waves to form solutions having narrow particle size distributions, then injecting into flame sprayers to form uniform coatings
06/17/2003US6579507 System and process for removal of pollutants from a gas stream
06/17/2003CA2104808C Fast response high purity membrane nitrogen generator
06/12/2003WO2003048037A1 Process for treating an aqueous medium containing phosphate salt and organic compounds
06/11/2003EP1317462A1 Silicoboroncarbonitride ceramics and precursor compounds, method for the production and use thereof
06/11/2003CN1422800A Vanadium nitride production method
06/10/2003US6576355 Nanotechnology for electronic and opto-electronic devices
06/10/2003US6576138 Method for purifying semiconductor gases
06/10/2003US6576044 Pressure- or temperature swing adsorption; metal-free adsorbent does not promote disproportionation
06/10/2003US6576036 Made by incorporating a grain growth inhibitor polymeric percursor into a composition to improve hardness, wear resistance, fracture toughness and/or corrosion resistance of alloys, carbides, nitrides, ceramics, or intermetallics
06/05/2003WO2003045610A2 Nano-dispersed powders and methods for their manufacture
06/05/2003US20030102099 Nano-dispersed powders and methods for their manufacture
06/04/2003EP1315546A2 System and process for removal of pollutants from a gas stream
06/04/2003CN1110344C Preparation for flow which removing at least one of impurity oxygen and Co and apparatus thereof
06/03/2003US6572838 Silver ion exchange
06/03/2003US6572834 Reacting zinc sulfate with calcium nitrite to form an aqueous zinc nitrite solution and a second step of purifying the aqueous zinc nitrite solutions
06/03/2003US6572717 Solid propellants,
06/03/2003US6572681 Purification of gases
06/03/2003US6572672 A non-stoichiometric non-equilibrium material, especially a metal or polymer
05/2003
05/29/2003US20030099590 Process for producing aluminum nitride and aluminum nitride
05/29/2003US20030097931 Adsorbing oxygen from the air using a pressure swing adsorption method
05/27/2003US6569518 Nanotechnology for electrochemical and energy devices
05/27/2003US6569490 Nanotechnology for chemical radiation, and biotechnology sensors
05/27/2003US6569397 Very high purity fine powders and methods to produce such powders
05/22/2003WO2003042099A1 Method for preparing functional nano-material utilizing endothermic reaction
05/21/2003EP1311335A1 Method and device for separating or enriching concentration in a mixture of gaseous or liquid constituents
05/21/2003CN1418809A Method for prepn. of high concentration hydroxymaline in the prodn. process of hexanolactam
05/15/2003WO2003041138A2 Sintered polycrystalline gallium nitride
05/15/2003WO2003040033A1 Improved method for making hydrazine hydrate
05/14/2003EP1310455A1 Process for producing aluminium nitride
05/14/2003EP1309514A2 Adsorption process and apparatus for nitrogen production and drink dispensing device making use of the apparatus
05/14/2003EP1181087B1 Isolation of sf6 from insulating gases in gas-insulated lines
05/13/2003US6562495 Nanoscale catalyst compositions from complex and non-stoichiometric compositions
05/13/2003US6562311 Method for preparing hydrazine hydrate
05/13/2003CA2293004C Method for production of nitric acid
05/13/2003CA2291388C Purification of gases
05/08/2003WO2003037784A2 Method for reversible storage of hydrogen and materials for hydrogen storage
05/08/2003US20030086856 For use in optoelectronics and electronic devices; density, hardness
05/07/2003EP1307401A1 New catalytic device for the implementation of a reaction in a gaseous medium at high temperature
05/07/2003EP1198412A4 Energy-activated compositions for controlled sustained release of a gas
05/02/2003EP1305259A1 Method of making aluminum oxynitride and aluminum oxynitride prepared by the method
05/01/2003WO2003035945A2 Substrate for epitaxy
05/01/2003US20030079981 Apparatus and method for distilling waste liquids
04/2003
04/30/2003CN1414376A Colourimetric fast determination tube for nitrite in water
04/29/2003US6555183 Plasma treatment of a titanium nitride film formed by chemical vapor deposition
04/29/2003US6555083 Chamber is filled with the gas chemically produced by thermal decomposition of a gas producing material, e.g., azobisisobutyronitrile, inside of the chamber itself using a usual means of a high frequency electromagnetic heating.
04/29/2003US6554609 Nanotechnology for electrical devices
04/24/2003US20030077398 Nanostructured feeds for thermal spray systems, method of manufacture, and coatings formed therefrom
04/23/2003EP1303480A1 Process for the production of cyclohexanone oxime
04/23/2003CN2546432Y Silicon nitride powder alpha phase transfering phase apparatus
04/22/2003US6551568 Process for the preparation of hydrazine
04/22/2003US6551387 Gas separation apparatus
04/17/2003WO2003031330A1 Stabilized hydroxylamine solutions
04/17/2003US20030073769 Mixture containing boron nitride powder and surfactant
04/16/2003EP1301468A1 Process for the production of cyclohexanone oxime
04/16/2003EP1007473B1 Method for performing catalytic or non-catalytic processes, with enriched oxygen as one of the reactants
04/16/2003CN1411423A Process for separation of hydroxylammonium salt solution
04/16/2003CN1410348A Preparation method of nano indium nitride powder
04/15/2003US6548402 Method of depositing a thick titanium nitride film
04/10/2003WO2003029142A1 Substance occluding material and electrochemical device using it, and production method for substance occluding material
04/10/2003WO2003028853A1 Psa process for co-producing nitrogen and oxygen
04/10/2003US20030068588 Aqueous solution containing hydroxylamine salt and storing method thereof
04/10/2003US20030068258 Cylindrical chemicl reactor with seal covering; cooling jacket; combustion
04/10/2003CA2459081A1 Substance occluding material and electrochemical device using it, and production method for substance occluding material
04/09/2003EP1299353A1 Process for the preparation of cyclohexanone oxime
04/09/2003EP0958239B1 Method for manufacturing hydroxylamine
04/03/2003WO2003027010A1 Method for producing nitrogen trifluoride
04/03/2003US20030064016 Process for the separation of a hydroxylammonium salt solution
1 ... 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 ... 108