| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 06/18/1998 | WO1998025698A1 Ammonia oxidation catalyst comprising aluminium oxide, bismuth oxide and manganese oxide |
| 06/18/1998 | CA2274760A1 Ammonia oxidation catalyst comprising aluminium oxide, bismuth oxide and manganese oxide |
| 06/17/1998 | CN1038741C Process for plasmachemical transformation of N2O into NOx and/or into derivatives thereof |
| 06/16/1998 | US5767025 Composite powder comprising silicon nitride and silicon carbide |
| 06/16/1998 | US5766445 From polypyrroles |
| 06/16/1998 | US5766336 Colored pigments based on oxide-nitrides, the preparation and use thereof |
| 06/16/1998 | CA2059654C Dinitramide salts and method of making same |
| 06/10/1998 | EP0751911B1 Aluminium nitride based platelets, process for their preparation and use thereof |
| 06/10/1998 | CN1184002A Catalyst based on titanosilicalites and process for producing N, N -disubstituted hydroxylamine |
| 06/10/1998 | CN1038667C Method and apparatus for preparing nitrogen atmosphere by film separation for metallic heat treatment |
| 06/10/1998 | CN1038651C Method and system for dual product pressure adsorption and membrane operations |
| 06/09/1998 | US5763347 In-situ crystallized zeolite containing composition (LAI-ISC) |
| 06/09/1998 | US5762897 Method for manufacturing hydroxylamine |
| 06/09/1998 | US5762865 Used to grow single crystal of semiconductors |
| 05/27/1998 | EP0843647A1 Method of preparing dinitramidic acid and salts thereof |
| 05/27/1998 | CN1182634A Separating method for gas mixture containing oxygen and nitrogen |
| 05/26/1998 | US5756930 Process for the preparation of gas-generating compositions |
| 05/26/1998 | US5756410 Method for making submicrometer transition metal carbonitrides |
| 05/22/1998 | WO1998021165A1 Method of preparing coated nitride powder and the coated powder produced thereby |
| 05/22/1998 | WO1998021147A1 Method for producing oxygen-containing hard materials and their use |
| 05/20/1998 | EP0739228A4 Recycling of wafer cleaning substances |
| 05/20/1998 | CN1182052A Purification of inert fluid in liquid state with respect to its impurities H2 and/or Co |
| 05/20/1998 | CN1181991A O2/CO removal from inert gas by adsorption on porous metal oxide |
| 05/19/1998 | US5752395 Golden ornament and method for production thereof |
| 05/14/1998 | WO1998019965A1 Microwave plasma chemical synthesis of ultrafine powders |
| 05/14/1998 | WO1998019964A1 Method for the synthesis of group iii nitride crystals |
| 05/14/1998 | DE19646333A1 Verfahren zur Herstellung von sauerstoffhaltigen Hartstoffen und deren Verwendung Process for the preparation of oxygen-containing hard materials and the use thereof |
| 05/14/1998 | CA2271117A1 Method for the synthesis of group iii nitride crystals |
| 05/07/1998 | WO1998019351A2 Nanostructured ion conducting solid electrolytes |
| 05/07/1998 | WO1998018717A1 Process for preparing hydroxylammonium salts |
| 05/07/1998 | CA2269845A1 Process for preparing hydroxylammonium salts |
| 04/28/1998 | US5744115 Preparation process of hydrazine hydrate |
| 04/22/1998 | CN1038124C Organic silane laser gas phase synthesis of silica-base micro powder |
| 04/21/1998 | US5741432 Stabilized nitric acid compositions |
| 04/16/1998 | WO1998015357A1 BARRIER DISCHARGE CONVERSION OF SO2 AND NOx TO ACIDS |
| 04/15/1998 | EP0835688A1 Titanium silicalites catalysts and n,n-disubstituted hydroxylamine preparation process |
| 04/15/1998 | EP0835686A2 Ammonia oxidation catalyst |
| 04/15/1998 | EP0792185A4 Very high purity nitrogen by membrane separation |
| 04/15/1998 | CN1178768A Process for preparing high purity nitrogen by deep purification fo coarse nitrogen and technological flow |
| 04/14/1998 | US5739072 Process for improving the physical and catalytic properties of a fluid cracking catalyst |
| 04/11/1998 | CA2215490A1 Catalyst based on titanium silicalites and process for obtaining n,n-disubstituted hydroxylamine |
| 04/08/1998 | EP0834466A1 Nitric acid production. |
| 04/08/1998 | EP0777550A4 Nanoscale particles, and uses for same |
| 04/08/1998 | CN1037982C Process for recovery of titanium from complex matrix comprising titanium nitride |
| 04/07/1998 | US5735938 Method for production of nitrogen using oxygen selective adsorbents |
| 04/03/1998 | CA2216477A1 Nitric acid production |
| 04/01/1998 | EP0832678A2 Inert gas purification |
| 03/26/1998 | WO1998012141A1 Pyridine and pyridone stabilizers for hydroxylammonium nitrate |
| 03/26/1998 | WO1998011776A1 Powders providing controlled sustained release of a gas |
| 03/26/1998 | CA2276239A1 Pyridine and pyridone stabilizers for hydroxylammonium nitrate |
| 03/24/1998 | CA1339771C Gas separation |
| 03/19/1998 | WO1998011017A1 Process for rapid solid-state formation of refractory nitrides |
| 03/18/1998 | EP0829292A1 Removal of H2 and/or CO impurities from an inert fluidum in liquid state |
| 03/18/1998 | EP0828688A1 Aluminium nitride granules |
| 03/18/1998 | CN1037751C Method and apparatus for separating nitrogen-rich gas |
| 03/17/1998 | US5728354 Process and plant for generating nitrogen for heat treatment |
| 03/12/1998 | WO1998009753A1 Integrated thermal process and apparatus for the continuous synthesis of nanoscale powders |
| 03/12/1998 | CA2263902A1 Integrated thermal process and apparatus for the continuous synthesis of nanoscale powders |
| 03/11/1998 | EP0827771A1 Process for separating gaseous mixtures containing oxygen and nitrogen |
| 03/11/1998 | CN1175984A Nanostructured feed for thermal spray |
| 03/11/1998 | CN1037701C Boron nitride crucible and process for producing same |
| 03/10/1998 | CA1339702C Apparatus and method for the removal of impurity gases from inert gases and the ensurance of the extremely low levels of hydrogen |
| 03/10/1998 | CA1339701C Hard-metal carbide and nitride powders for ceramics by carbothermic reduction and the process for manufacturing said powers |
| 03/05/1998 | DE19634777A1 Production of ceramic materials |
| 03/05/1998 | DE19634530A1 Alteration of formation rate or half-life of reactive molecular species |
| 03/04/1998 | EP0826628A1 SiCN gels as precursors of non oxide silicon ceramics |
| 02/25/1998 | EP0825402A2 Cryogenic system for producing nitrogen |
| 02/25/1998 | EP0824371A1 Carbides and nitrides of transition elements with controlled porosity |
| 02/19/1998 | WO1998006664A1 Process and device for producing nitrogen from air |
| 02/19/1998 | DE19734736A1 Pyrolytic boron nitride container with IR transmission profile |
| 02/19/1998 | DE19632702A1 Purifying synthesis products of ammonolysis of chloro:silane(s) |
| 02/18/1998 | CN1173479A Melamine borate particles, method for theri production and their use, and method for producing hexagonal systen boron nitride power |
| 02/18/1998 | CN1173462A Direct oxygen infection in nitric acid production |
| 02/18/1998 | CN1037427C Laser gas-phase synthesis of superfine ferric nitride powder |
| 02/12/1998 | WO1998005590A1 Boron nitride and process for preparing the same |
| 02/12/1998 | DE19631949A1 Verfahren und Vorrichtung zum Erzeugen von Stickstoff aus Luft Method and apparatus for producing nitrogen from air |
| 02/11/1998 | CN1172794A Method for combined preparation of hydroxylamine salt and hypocarbonyl compound |
| 02/10/1998 | US5716670 Silicon nitride powder and method for producing the same |
| 02/10/1998 | US5716589 Catalyst for polysiloxane |
| 02/10/1998 | CA2031318C Procedure for vaporization of a hydrazine solution |
| 02/03/1998 | US5714714 Process for preparing ammonium dinitramide |
| 01/28/1998 | EP0820960A1 Removal of O2 and/or CO from inert gas using adsorption on porous metal oxide |
| 01/28/1998 | CN1171534A Process and device for preparation of cryogenic fluid in high purity liquid state |
| 01/27/1998 | US5711930 Process for improving the phyiscal properties of formed particles |
| 01/27/1998 | US5711859 Process for plasma-chemical conversion of N2 O into NOx |
| 01/22/1998 | WO1998002241A1 Electrically assisted synthesis of particles and films with precisely controlled characteristics |
| 01/22/1998 | CA2259691A1 Electrically assisted synthesis of particles and films with precisely controlled characteristics |
| 01/20/1998 | US5710382 Aluminum nitride, aluminum nitride containing solid solutions and aluminum nitride composites prepared by combustion synthesis and sintered bodies prepared therefrom |
| 01/20/1998 | US5709789 Electrochemical conversion of nitrogen containing gas to hydroxylamine and hydroxylammonium salts |
| 01/20/1998 | CA2103225C Oxygen removal from partially purified nitrogen |
| 01/15/1998 | WO1998001215A1 Method for the adsorptive separation of air |
| 01/15/1998 | DE19627422A1 Verfahren zur adsorptiven Trennung von Luft The method of adsorptive separation of air |
| 01/15/1998 | CA2259660A1 Method for the adsorptive separation of air |
| 01/14/1998 | EP0708678B1 Container for carbon molecular-sieve material |
| 01/14/1998 | CN1036989C Process and device for the preparation of high-purity liquid nitrogen |
| 01/07/1998 | EP0785818A4 Multiple stage semi-permeable membrane gas separation process |
| 01/07/1998 | EP0762997A4 Ceramic production process |
| 01/06/1998 | US5705136 Catalyzed decomposition of nitrogen oxides on metal oxide supports |
| 12/31/1997 | WO1997049479A1 Method of removing, from a stream of gas, fluorinated compounds which contribute to destruction of the ozone layer and/or changes in climate, and use of the method |
| 12/30/1997 | US5703323 Pyridine and pyridone stabilizers for hydroxylammonium nitrate and hydroxylamine-containing compositions |