| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 10/01/2002 | US6458249 Process for purifying perfluorinated products |
| 10/01/2002 | US6457327 Directly contacting the diluted gas with a cryogenic liquid having a temperature less than or equal to -150 degrees f., thereby producing a vapor lean in the fluorine compounds and liquid enriched with the fluorine compounds |
| 09/26/2002 | US20020134236 Ceramic deoxygenation hybrid systems for the production of oxygen and nitrogen gases |
| 09/25/2002 | EP1242165A1 Gas purification system with an integrated hydrogen sorption and filter assembly |
| 09/25/2002 | EP1113984B1 Method for preparing hydrazine hydrate |
| 09/25/2002 | CN1371139A Ball milling process of preparing lithium nitride for negative electrode material of lithium ion battery |
| 09/25/2002 | CN1370737A Synthesis of cubic born nitride |
| 09/19/2002 | WO2002072244A2 Method of reducing the n2o content of gases and selected catalysts |
| 09/18/2002 | EP1241138A1 Basic metal nitrate, method for producing the same and gas-generating agent composition |
| 09/18/2002 | EP1239983A2 Method for producing a powder |
| 09/18/2002 | CN1090994C Catalyst ganzes for gaseous reactions |
| 09/17/2002 | US6451280 Process for regeneration of acids from spent acids |
| 09/17/2002 | US6451278 High-temperature catalytic conversion of ammonia in a two-stage catalytic system, gas flow with platinoids |
| 09/17/2002 | US6451269 Liquid hydrate regeneration of contaminated acids |
| 09/17/2002 | CA2073231C Direct catalytic process for the production of hydroxylamine |
| 09/12/2002 | US20020127932 Three-dimensional catalyst gauzes knitted in two or more layers |
| 09/12/2002 | US20020127167 Method and apparatus for the production of nitrogen trifluoride |
| 09/12/2002 | US20020125457 Ferromagnetism; magnetic characteristics are changeable by temperature or irradiation of light; useful in electric motors |
| 09/11/2002 | EP1238944A1 Process for the preparation of lithium amide |
| 09/11/2002 | EP1237647A1 Cubic boron nitride clusters |
| 09/11/2002 | CN1090521C Method for removing nitrogen exides from gas flow |
| 09/10/2002 | US6449420 Germanium silicon oxynitride high index films for planar waveguides |
| 09/10/2002 | CA2046772C Carbon dioxide production from combustion exhaust gases with nitrogen and argon by-product recovery |
| 09/06/2002 | WO2002010066A3 Adsorption process and apparatus for nitrogen production and drink dispensing device making use of the apparatus |
| 09/05/2002 | US20020122757 Method and apparatus for preparing aluminum nitride |
| 09/04/2002 | CN1367757A Method for preparing highly stabilised hydroxylamine solutions |
| 09/03/2002 | US6444588 Providing inorganic silicon oxynitride antireflective coating material layer on substrate assembly surface, using layer in photolithographic process, thermally treating layer to reduce etch rate |
| 08/29/2002 | WO2002066374A1 A method for performing thermal reactions between reactants and a furnace for same |
| 08/29/2002 | CA2438771A1 A method for performing thermal reactions between reactants and a furnace for same |
| 08/28/2002 | EP1121343B1 Method for preparing hydrazine |
| 08/22/2002 | US20020112794 Microwave plasma chemical synthesis of ultrafine powders |
| 08/21/2002 | EP1232997A1 Method of treating an acid treatment solution, device for treating the solution, and method of fabricating a support for a planographic printing plate |
| 08/21/2002 | EP1232125A1 Germanium silicon oxynitride high index films for planar waveguides |
| 08/21/2002 | CN1364728A Process for preparing nitride ultromicro powder and nitride crystal wunder hydrothermal condition |
| 08/20/2002 | US6436356 Apparatus for self-propagating high temperature synthesis |
| 08/20/2002 | CA2252454C Cryogenic system for producing ultra-high purity nitrogen |
| 08/15/2002 | WO2002062470A1 Photocatalysts for decomposition of water with visible light |
| 08/15/2002 | WO2002062466A2 Three-dimensional catalyst gauzes knitted in two or more layers |
| 08/14/2002 | EP1086044B1 Method for preparing hydrazine hydrate |
| 08/14/2002 | EP1030818B1 Process for purifying perfluorinated products |
| 08/14/2002 | DE10146227A1 Siliciumnitrid-Produkt Silicon nitride product |
| 08/14/2002 | CN1363512A Process for preparing concentrated solution of hydrazine hydrate |
| 08/13/2002 | CA2068856C Nitride approach calcium refining process |
| 08/08/2002 | WO2002048026A3 Boron nitride powder and method for preparing same |
| 08/08/2002 | US20020106174 Germanium silicon oxynitride high index films for planar waveguides |
| 08/07/2002 | EP1229000A2 Process for purifying perfluorinated products |
| 08/07/2002 | CN2504251Y Heating appts. for synthetizing cubic boron nitride |
| 08/07/2002 | CN2504250Y Heater for synthesizing cubic boron nitride |
| 08/07/2002 | CN1362358A Low pressure combustion process of synthesizing alpha-phase silicon nitride powder |
| 08/06/2002 | US6428762 Reacting halogenated triazines and lithium nitride, heating, then cooling to form polytriazines; nitriding; crosslinking; hardness |
| 08/06/2002 | CA2087355C Simplified apparatus for producing liquid nitrogen |
| 07/31/2002 | CN2503057Y High-efficient ammonia oxidation furnace-gastube boiler for producing nitric acid 450 ton/day by double-pressure method |
| 07/31/2002 | CN2503056Y Ammonia oxidation furnace for producing nitric acid by atmospheric and low-pressure method |
| 07/31/2002 | CN1361749A Process for nitrous oxide purification |
| 07/31/2002 | CN1361709A Gas purification system with an integrated hydrogen sorption and filter assembly |
| 07/31/2002 | CN1361299A Purifying and nitriding process of producing manganese alloy with very low impurity content |
| 07/31/2002 | CN1360961A Purifying method of semi-conductor gas |
| 07/30/2002 | US6425938 Separation of gases |
| 07/30/2002 | CA2177725C Multilayer coating of a nitride-containing compound and method for producing it |
| 07/25/2002 | WO2002057182A2 Ceramic materials in powder form and method for their preparation |
| 07/25/2002 | DE10111725C1 Production of lithium amide, used as reagent in organic synthesis, e.g. condensation or alkylation, comprises converting lithium to bronze with ammonia and reaction with 1,3-diene or arylolefin in solvent |
| 07/25/2002 | DE10042171A1 Spinell-SiAIONe und multinäre (Oxid)-Nitrid-Spinelle, Verfahren zu deren Herstellung und Anwendungen Spinel SiAlONs and multinary (oxide) nitride, spinels, processes for their preparation and uses |
| 07/25/2002 | CA2441576A1 Ceramic materials in powder form and method for their preparation |
| 07/24/2002 | CN1088124C Golden ornament and its producing method |
| 07/23/2002 | US6423373 Surface treated aluminum nitride and fabricating method thereof |
| 07/23/2002 | US6423287 Method for production of aluminum nitride power |
| 07/23/2002 | US6423121 Heating under vacuum; using zeolite type x |
| 07/19/2002 | CA2331470A1 Ceramic materials in powder form |
| 07/18/2002 | WO2002055240A1 Very high purity fine powders and methods to produce such powders |
| 07/18/2002 | WO2002022522A3 Silicon-boron-carbon-nitrogen ceramics and precursor compounds, methods for the production and use thereof |
| 07/17/2002 | EP1222147A1 Method and device for producing powders that consist of substantially spherical particles |
| 07/17/2002 | EP0863843B1 Nitric acid production and recycle |
| 07/17/2002 | CN1358665A Method and apapratus for producing nitrogen trifluoride |
| 07/17/2002 | CN1358664A Process for making ammonia by hydrogen combustion |
| 07/17/2002 | CN1087825C Simplified apparatus for producing liquid nitrogen |
| 07/11/2002 | WO2002053494A1 Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group |
| 07/10/2002 | EP1012114B1 Method for producing an aqueous solution of free hydroxylamine |
| 07/04/2002 | WO2002051747A1 Method for producing nitric acid |
| 07/03/2002 | EP1219722A1 High melting point metal based alloy material having high toughness and strength |
| 07/03/2002 | EP1218318A1 Gas generator and method for the generation of low-temperature gas |
| 07/03/2002 | CN1357149A Capacitor substrates made of refractory metal nitrides |
| 07/03/2002 | CN1356292A Silicon nitride powder, its sintered body, substrate and circuit board and thermoelectric element module thereof |
| 07/03/2002 | CN1356259A Modified nano silicon particles |
| 06/27/2002 | US20020079476 Applications and devices based on nanostructured non-stoichiometric substances |
| 06/27/2002 | US20020079390 Process for recycling side dams for the continuous casting of thin steel strip |
| 06/26/2002 | EP1216605A1 Method and apparatus for producing bulk quantities of nano-sized materials by electrothermal gun synthesis |
| 06/26/2002 | EP1076634B1 Method for the catalytic decomposition of n 2?o |
| 06/26/2002 | EP0768117B1 Carbonaceous adsorbent, process for producing the same, and method and apparatus for gas separation |
| 06/26/2002 | CN1355768A Energy-activated compositions for controlled sustained release of gas |
| 06/26/2002 | CN1086606C Multi-functional catalyst, prepn. method and use thereof |
| 06/25/2002 | US6409851 Microwave plasma chemical synthesis of ultrafine powders |
| 06/20/2002 | WO2002048031A2 Method for continuously producing hydroxylammonium salts |
| 06/20/2002 | WO2002048026A2 Boron nitride powder and method for preparing same |
| 06/20/2002 | US20020076557 Process for producing boron nitride |
| 06/20/2002 | US20020074289 Purifying ammonia, nitrogen, helium, and argon via molecular sieves |
| 06/20/2002 | DE10062325A1 Verfahren zur kontinuierlichen Herstellung von Hydroxylammoniumsalzen Process for the continuous preparation of hydroxylammonium salts |
| 06/19/2002 | EP1215169A1 Method and apparatus for the production of nitrogen trifluoride |
| 06/19/2002 | EP1214965A2 Method for purifying gases |
| 06/19/2002 | EP1214933A1 Method for modulating the metabolism of nitrogen oxides, compositions therefor (and variants) and method for acting on a patient's organism necessitating the metabolism of nitrogen oxides to be corrected |
| 06/19/2002 | CN1354172A Method for removing nitrous acid gas |