Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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12/27/2002 | WO2002086451A3 Organoboron route and process for preparation of boron nitride |
12/27/2002 | CA2450261A1 Method of making nanotube-based material with enhanced electron field emission properties |
12/19/2002 | US20020193040 Method of making nanotube-based material with enhanced electron field emission properties |
12/19/2002 | DE10127768A1 Nitrogen abstracted from air by molecular sieve of steam-treated coconut shell subsequently treated with hydrocarbons |
12/18/2002 | CN2526312Y Purifying device for removing oxygen and water from nitrogen |
12/17/2002 | US6495112 Method and apparatus for removing oxygen from natural gas |
12/12/2002 | WO2002098842A1 Method for making 2,2,4,4-tetramethyl-3-pentanone oxime and hydroxylammonium salts |
12/12/2002 | WO2002098555A1 Method for the production of carbon molecular sieves for extracting nitrogen from the air |
12/12/2002 | WO2002076906A3 Method for producing cubic boron nitride and product obtained through the method |
12/12/2002 | WO2002072244A3 Method of reducing the n2o content of gases and selected catalysts |
12/12/2002 | US20020188158 Method for preparing lithium amide |
12/12/2002 | US20020188052 Barium ferrite filler; magnetic tapes |
12/12/2002 | US20020187387 Nano-ionic products and devices |
12/11/2002 | CN1384054A Reaction phase change process of producing nano material continuously |
12/11/2002 | CN1384049A Preparation of nitrogen trifluoride |
12/10/2002 | CA2068612C Method of producing alkali metal azides |
12/05/2002 | WO2002096799A2 Silicon subnitride method for production and use of said subnitride |
12/05/2002 | WO2002033334A3 Method and installation for purifying and recycling helium and use in optical fibre manufacture |
12/05/2002 | WO2001020953A9 Method and apparatus for producing bulk quantities of nano-sized materials by electrothermal gun synthesis |
12/05/2002 | US20020182507 Nonaqueous electrolyte lithium-transition metal-containing composite nitride that may also contain other alkali metal or alkaline earth metal metal |
12/05/2002 | US20020182394 Pyrolytic boron nitride crucible and method |
12/05/2002 | US20020182136 Method for preparing manganese-based nitride having nearly zero temperature coefficient of resistivity |
12/05/2002 | DE10125629A1 Siliciumsubnitrid Siliciumsubnitrid |
12/04/2002 | EP1261750A1 Process for refining silver bullion with gold separation |
12/04/2002 | EP1261554A1 MATERIAL FOR SiON-OPTICAL WAVEGUIDES AND METHOD FOR FABRICATING SUCH WAVEGUIDES |
12/04/2002 | EP1261548A1 Method for producing nitric acid |
12/04/2002 | EP1261547A1 Removal of laughing gas in nitric acid production |
12/04/2002 | CN1382622A BCN crystal with orthogonal structure and its preparing process |
12/04/2002 | CN1095398C 氨氧化催化剂 Ammonia oxidation catalyst |
12/03/2002 | US6489264 Ammonia oxidation catalyst |
11/28/2002 | WO2002057182A3 Ceramic materials in powder form and method for their preparation |
11/28/2002 | US20020176987 Ink comprising: a non-stoichiometric non-equilibrium nanostructured material; device such as electronics using such a material |
11/27/2002 | EP1260357A2 Pyrolytic boron nitride crucible and method |
11/27/2002 | EP1019319B1 Synthesis method for solution with high grade chloramine |
11/26/2002 | US6485700 Process for producing free hydroxylamine aqueous solution |
11/21/2002 | WO2002092504A1 Method for producing nitrogen fluoride |
11/21/2002 | WO2002092503A1 Spherical boron nitride particles and method for preparing them |
11/21/2002 | US20020172826 Nanoscale catalyst compositions from complex and non-stoichiometric compositions |
11/21/2002 | US20020172635 Generating aerosol of particles of boron nitride suspended in aerosol gas; generating plasma comprising nitrogen; directing aerosol into plasma hot zone to melt boron nitride; allowing molten particles to exit hot zone to cool and solidify |
11/21/2002 | US20020170593 Non-stoichiometric non- equilibrium material, and the material is a nanostructured material. |
11/20/2002 | EP1258279A2 Membrane apparatus for the production of gaseous nitrogen |
11/20/2002 | EP1257525A1 Stabilizing agent for hydroxylamine solutions |
11/20/2002 | EP1257500A1 Process for the separation of a hydroxylammonium salt solution |
11/20/2002 | EP1257347A1 Catalyst for decomposing n 2?o, its use and method for the production thereof |
11/20/2002 | CN1380907A Non-evaporable getter alloys |
11/20/2002 | CN1380874A Method and device for reduction of nitrogen protoxide |
11/20/2002 | CN1380247A Preparation method of vanadium nitride nano powder body |
11/19/2002 | US6482384 Method for synthesis of aluminum nitride |
11/19/2002 | US6482383 Reacting ammonia, hydrogen peroxide and methyl ethyl ketone in a working solution to form an azine and methyl ethyl ketone oxime, separating, recycling |
11/14/2002 | WO2002090256A2 Process for the preparation of amonia oxidation |
11/14/2002 | WO2002090255A1 Method for energy generation by production and reaction of aluminium nitride |
11/14/2002 | WO2002090254A1 Method for the production of silicon nitride |
11/14/2002 | US20020168522 Nanotechnology for electronic and opto-electronic devices |
11/14/2002 | US20020168302 For removal of pollutants, such as oxides of sulfur, oxides of nitrogen, fly ash, mercury compounds, and elemental mercury from gases generated from the burning of fossil fuels |
11/14/2002 | CA2446269A1 Process for the preparation of amonia oxidation |
11/13/2002 | EP1256546A1 Process for preparing nitrogen trifluoride |
11/12/2002 | CA2202239C Liquid absorbent solutions for separating nitrogen from natural gas |
11/12/2002 | CA2018564C 4,5,5a,6-tetrahydro-3h-isoxazolo¬5,4,3-kl|acridines derivatives, a process for their preparation and their use as medicaments |
11/07/2002 | WO2002087733A1 Method for reducing the content of n2o and nox in gases |
11/07/2002 | WO2002062466A3 Three-dimensional catalyst gauzes knitted in two or more layers |
11/07/2002 | US20020164482 Nanotechnology for biomedical products |
11/07/2002 | US20020164475 Silicon nitride powder, silicon nitride sintered body, sintered silicon nitride substrate, and circuit board and thermoelectric module comprising such sintered silicon nitride substrate |
11/07/2002 | US20020162738 Methods of producing ultra -low resistivity tantalum films. |
11/07/2002 | DE10121476A1 Verfahren zur Herstellung von Siliciumnitrid A process for the production of silicon nitride |
11/07/2002 | DE10121475A1 Verfahren zur Energieerzeugung A method for generating energy |
10/31/2002 | WO2002086451A2 Organoboron route and process for preparation of boron nitride |
10/31/2002 | US20020160191 Low maturing temperature porcelain compositions useful for the fabrication of dental restorations. |
10/31/2002 | US20020160190 Nanotechnology for magnetic components |
10/31/2002 | US20020159937 Method and apparatus for removing oxygen from natural gas |
10/31/2002 | US20020157952 Adding sulfuric acid to an acid treatment solution which contains a non-alkaline metal ions to produce sulfate, and recovering the regenerated acid treatment solution by separating the sulfate (aluminum sulfate) |
10/30/2002 | CN2518842Y Integrated miniature machine for preparation of nitrogen |
10/30/2002 | CN1376634A Process for preparing nano titanium chromium nitride oxide powder |
10/24/2002 | WO2002083554A2 Method for the production of highly pure nitric acid |
10/24/2002 | US20020155219 From titanium chloride and ammonia; aftertreatment with hydrogen gas |
10/24/2002 | US20020155052 Aerosolizing organoboron precursor; introducing carrier gas into chamber to forming a combined gas stream; sweeping into heated furnace; injecting nitriding agent to form powder of boron-nitrogen-oxygen-carbon-hydrogen; collecting |
10/24/2002 | DE10118383A1 Production of high-purity nitric acid comprises distilling concentrated nitric acid and/or crude nitric acid |
10/23/2002 | EP1251101A2 Nitrogen trifluoride (NF3) |
10/23/2002 | EP1250286A1 Method for concentrating aqueous hydrazine solution and device therefor |
10/23/2002 | EP1144306B1 Method for making a hydrazine by hydrolysing an azine |
10/23/2002 | CN1376135A Basic metal nitrate, method for producing the same and gas-generating agent composition |
10/22/2002 | US6468366 Aluminum alloy or composite with such as magnesium wherein the concentration of aluminum is higher at surface nitrided portion; corrosion resistance; wiring for semiconductors and liquid crystal panels |
10/17/2002 | US20020150516 System and process for removal of pollutants from a gas stream |
10/16/2002 | EP1249881A2 Negative electrode material for nonaqueous electrolyte secondary battery and method for producing the same |
10/15/2002 | US6464955 Contacting oxygen conducting ceramic with a feed gas comprising component selected from steam, carbon dioxide, sulfur oxides, nitrogen oxides and mixtures in adsorption zone; removing oxygen |
10/15/2002 | US6464906 Method of manufacturing spherical bodies by rotation, spherical bodies made by the method and a powder composition for use in the method |
10/10/2002 | WO2002080256A1 Film forming method and film forming device |
10/10/2002 | US20020144887 Process for the production of anhydrous hydrazine and device for its implementation |
10/09/2002 | CN1092139C Cubic phase C3N4 and preparing method thereof |
10/08/2002 | US6461990 Cubic boron nitride composite particle |
10/03/2002 | WO2002076906A2 Method for producing cubic boron nitride and product obtained through the method |
10/02/2002 | EP1245535A2 An aqueous solution containing hydroxylamine salt and storing method thereof |
10/02/2002 | DE10112444A1 Reducing the nitrogen oxide and nitrous oxide content of a gas comprises adding a gaseous reducing agent and contacting the gas with an iron-loaded zeolite catalyst |
10/02/2002 | DE10112396A1 Verfahren zur Verringerung des N¶2¶O-Gehalts in Gasen und ausgewählte Katalysatoren Process for reducing the N¶2¶O content in gases and selected catalysts |
10/02/2002 | DE10105624A1 Knitted catalyst gauze used in heterogeneously catalyzed gas reactions catalyzed by noble metals, such as oxidation of ammonia with atmospheric oxygen for producing nitric acid, comprises weft threads |
10/02/2002 | CN1371861A Non-chemical measured lithium magnesium nitride and preparation process and application thereof |
10/02/2002 | CN1091763C Method for preventing hydroxylamine from decomposing in inorganic solution for prparing caprolactam by using hydroxylamine phosphate oximation method |
10/02/2002 | CN1091656C Grid catalyst preparation process and use thereof |
10/02/2002 | CN1091635C Purifying method for inactive gas recovered from solid condensation reactor of paraprex |
10/02/2002 | CN1091633C Reactive purge for solid electrolyte membrane gas separation |
10/01/2002 | US6458255 Ultra-low resistivity tantalum films and methods for their deposition |