Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7550126 | NO augmentation in exhaust gas simulation system Various methods and systems for augmenting the amount of NOX in the exhaust of an exhaust flow simulation system. These methods and system can be “combustion” or “post combustion”. A combustion embodiment injects a nitrogen-containing compound (do... | 06/23/2009 |
| 7419647 | Hydrothermally stable Ag-zeolite traps for small olefin hydrocarbon molecules A hydrocarbon trap comprises an Ag-zeolite which is heated by a unique steaming regimen. ... | 09/02/2008 |
| 7326494 | Composite material and electrodes made therefrom A composite material having utility as a cathode material for a lithium ion battery includes a first component which is a metal phosphate and a second component which is a metal nitride, a metal oxynitride, or a mixture of the two. The second component is coated on,... | 02/05/2008 |
| 7309475 | Whisker-reinforced ceramic containing aluminum oxynitride and method of making the same A process of making aluminum oxynitride powder including the steps of: forming a powder mixture by mixing alumina powder and aluminum nitride powder according to the following formula: ((4−x)/3) alumina and x aluminum nitride wherein x is in mole percent and range... | 12/18/2007 |
| 7285188 | Oxynitride compounds, methods of preparation, and uses thereof Embodiments of the present disclosure provide for methods of transforming from one crystal structure to another crystal structure in TiO2 nanocolloids and TiO2-xNx nanocolloids. ... | 10/23/2007 |
| 7186392 | Oxynitride compounds, methods of preparation, and uses thereof Oxynitride nanoparticles, methods of preparation thereof, and methods of use thereof are disclosed. One representative oxynitride nanoparticle includes a MxOyNz nanoparticle, where x is in the range of about 1 to 3, y is in the range... | 03/06/2007 |
| 7083772 | Aqueous solution of zinc nitrite and method for production thereof An aqueous zinc nitrite solution which contains substantially no calcium (Ca) ions is provided, in which, in terms of the aqueous zinc nitrite [Zn(NO2)2] solution having an NO2 concentration of 10% by weight, the sodium (Na) ion conc... | 08/01/2006 |
| 7071139 | Oxynitride compounds, methods of preparation, and uses thereof Oxynitride nanoparticles, methods of preparation thereof, and methods of use thereof are disclosed. One representative oxynitride nanoparticle includes a MxOyNz nanoparticle, where x is in the range of about 1 to 3, y is in the range... | 07/04/2006 |
| 7045091 | Transient liquid phase reactive sintering of aluminum oxynitride (AlON) A transparent aluminum oxynitride product is produced by a first heat treating step wherein a combination of Al2O3 and AlN at a temperature within the solid-liquid phase and a second step of sintering the heat treated combination at a temperatu... | 05/16/2006 |
| 6955798 | Method for manufacturing aluminum oxynitride (AlON) powder and other nitrogen-containing powders A method of preparing substantially homogeneous aluminum oxynitride powder and other nitrogen-containing powders is provided. Particularly with respect to the AlON powder, the method comprises the steps of milling a mixture of aluminum and aluminum oxide in a nitrog... | 10/18/2005 |
| 6855306 | Process for the recovery of sodium nitrite A process is provided for the removal of undesirable organic matter from solutions of sodium nitrite that are generated as byproducts in the manufacture of thermoplastic resins. The process employs certain activated carbon types derived from lignite granular materia... | 02/15/2005 |
| 6783856 | Metal oxyanion coated porous substrates Metal oxyanion coated substrates are disclosed comprising a three dimensional inorganic porous substrate having a coating of metal oxyanion on at least a portion of all three dimensions thereof, produced by a unique process having particular applicability to the man... | 08/31/2004 |
| 6776927 | Oxynitride phosphor activated by a rare earth element, and sialon type phosphor An oxynitride phosphor activated by a rare earth element, represented by the formula CaxSi12−(m+n)Al(m+n)OnN16−n: EuyDyz, wherein stabilizing metal (Ca) is substituted partially by Eu o... | 08/17/2004 |
| 6680130 | High K dielectric material and method of making a high K dielectric material A dielectric material having a high dielectric constant includes a Group III metal oxide and a Group V element. The incorporation of the Group V element in the Group III metal oxide material reduces the number of structural defects in the dielectric mater... | 01/20/2004 |
| 6572834 | Aqueous zinc nitrite solution and method for preparing the same An aqueous zinc nitrite solution contains as impurities 10 ppm or less of sodium (Na) and 100 ppm or less of sulfate ions (SO4) when the aqueous solution has a concentration of zinc nitrite [Zn(NO2)2 ] of 10% by weight in ... | 06/03/2003 |
| 6383416 | Electron-emitting material and preparing process An electron-emitting material contains a first metal component selected from Ba, Sr and Ca and a second metal component selected from Ta, Zr, Nb, Ti and Hf and also contains oxynitride perovskite. The electron-emitting material has improved electron emiss... | 05/07/2002 |
| 6379449 | Process for the production of yellow to red pigments based on nitrides and oxidenitrides Nitride or oxidenitride based red to yellow pigments, such as tantalum(V) nitride and oxidenitrides containing tantalum may be produced by passing ammonia over nitridable metal compounds, in particular oxide compounds, at 700 to 1250° C. According to the... | 04/30/2002 |
| 6251354 | Process for recovering sodium nitrite The present invention provides a process for recovering a metal nitrite, e.g., sodium nitrite, from a reaction mixture formed from an aromatic displacement reaction such as the synthesis of an aromatic bis(ether phthalimide) in an organic non-polar solven... | 06/26/2001 |
| 6083468 | Method of manufacturing a hydrogenation catalyst A hydrogenation catalyst is prepared by reduction of platinum in an oxidation state of not less than two using a reducing agent in an aqueous medium in the presence of a carbon-containing support after partial poisoning, where use is made of a compound of... | 07/04/2000 |
| 6066414 | Material of negative electrode and nonaqueous-electrolyte secondary battery using the same A material for a negative electrode having excellent performance for doping lithium and de-doping lithium and a nonaqueous-electrolyte secondary battery having a large capacity are provided. The nonaqueous-electrolyte secondary battery is disclosed which ... | 05/23/2000 |
| 6004523 | Process for abating NOx emissions from a manufacturing stream The present invention provides a process for abating emissions from a manufacturing stream comprising the steps of: (a) from the manufacturing stream, feeding the emissions comprising NOx to a scrubbing reactor; (b) to the emissions in the scrubbing... | 12/21/1999 |
| 5976483 | Method of preparing dinitramidic acid and salts thereof The invention relates to a method of preparing dinitramidic acid HN(NO2)2 and salts thereof having the formula M+n (- N(NO2)2)n, wherein M is a metal cation or a nitrogen-contain... | 11/02/1999 |
| 5942203 | Process for producing and utilizing an oxygen enriched gas This invention comprises a method and apparatus for obtaining from air an oxygen enriched gas mixture containing at least 40 mole % nitrogen. The apparatus comprises a gas turbine, an oxygen separation unit which is in fluid communication with the turbine... | 08/24/1999 |
| 5780769 | Thermal stabilization of N,N-dinitramide salts The thermal stability of an N,N-dinitramide salt of the formula M+ N(NO2)2 !- where M+ is a nitrogen-containing cation, is improved by mixing with the N,N-dinitramide salt a compound of the formula ... | 07/14/1998 |
| 5688730 | Optically transparent gamma-aluminum oxynitride powders and ceramic articles shaped therefrom Gamma-aluminum oxynitride ground powders, white in color and well suited for conversion into optically transparent ceramic shaped articles, 100% of the particles of which being less than 10 μm in size and exhibiting a transmittance of at least 8%, are pr... | 11/18/1997 |
| 5659080 | Synthetic method for forming ammonium dinitrammide (ADN) A synthetic method for ammonium dinitramide comprising a process for the formation of urea nitrate by reacting urea with diluted nitric acid; a process for the formation of nitrourea by reacting the urea nitrate with sulfuric acid; a process of reacting t... | 08/19/1997 |
| 5626827 | Basic aluminum antiperspirant active materials having enhanced activity, antiperspirant active compositions containing such materials, and methods for preparation of such materials and compositions Disclosed are basic aluminum antiperspirant materials having univalent complex oxoanions (e.g., nitrate); methods of making such materials; antiperspirant compositions containing such basic aluminum materials, another antiperspirant active material (e.g.,... | 05/06/1997 |
| 5595715 | Synthesis of tetramethylammonium aluminosilicate and use thereof There is provided a method for the preparation of tetramethylammonium aluminosilicate from tetramethylammonium hydroxide, a solid source of silica and a hydrolyzable aluminum compound. Tetramethylammonium aluminosilicate prepared by the above method is us... | 01/21/1997 |
| 5560895 | Method of use of a hydrogenation catalyst based on a platinum metal partially poisoned with finely divided sulfur A process of use of hydrogenation catalyst, obtainable by carrying out essentially the following steps: (a) treatment of a platinum metal salt with finely divided sulfur followed by (b) reduction of the platinum metal salt to metallic platinum metal.... | 10/01/1996 |
| 5444173 | Catalytic bimetallic oxynitrides and nitrides Bimetallic oxynitrides and nitrides which have catalytic properties comprise two transition metals selected from Groups IIIB to VIII of the Periodic Table of the Elements. Preferably, one metal is either molybdenum or tungsten. The other can be tungsten o... | 08/22/1995 |
| 5439660 | Oxonitrides of the formula LnTaOn2 with enhanced brightness and a process for their production and use Oxonitrides with a perovskite of the general formula LnTaON2, where Ln is a rare-earth element, and which exhibit an enhanced brightness, are produced by annealing a powder mixture consisting of a Ta (V) compound and a Ln compound in a reducing... | 08/08/1995 |
| 5415852 | Process for forming a dinitramide salt or acid by reaction of a salt or free acid of an N(alkoxycarbonyl)N-nitroamide with a nitronium-containing compound followed by reaction of the intermediate product respectively with a base or alcohol A method is disclosed for forming an ionically bonded dinitramide salt or acid useful as a stable oxidizer for solid fuel rocket propellant or explosive formulations is disclosed. The dinitramide salt is formed by the reaction of an N(alkoxycarbonyl)N-nit... | 05/16/1995 |
| 5348720 | Basic aluminum antiperspirant active material having enhanced activity, antiperspirant active composition containing such material, and methods for preparation of such material and composition Disclosed is a basic aluminum material having enhanced antiperspirant activity, the material having the empirical formula Al2 (OH)6-a Xa, where 0.5ࣘaࣘ5.0, and X is a univalent complex oxoanion of nitrogen, chlorine and... | 09/20/1994 |
| 5316749 | Process for forming ammonium dinitramide salt by reaction between ammonia and a nitronium-containing compound A method for forming an ionically bonded ammonium dinitramide salt having the formula NH430 N(NO2)2 - useful as a stable oxidizer for solid fuel rocket propellant or explosive formulations is disclosed. The ammo... | 05/31/1994 |
| 5254324 | Dinitramide salts and method of making same A N,N-dinitramide salt is disclosed having the formula MN(NO2)2 where M is a cation selected from the class consisting of a metal ion and a nitrogen-containing ion. The dinitramide salt exhibits high temperature stability, high energ... | 10/19/1993 |
| 5245110 | Process for producing and utilizing an oxygen enriched gas This invention comprises a method and apparatus for obtaining from air an oxygen enriched gas mixture containing at least 40 mole % nitrogen. The apparatus comprises a gas turbine, an oxygen separation unit which is in fluid communication with the turbine... | 09/14/1993 |
| 5198204 | Method of forming dinitramide salts A method is disclosed for forming a N,N-dinitramide salt having the formula MN(NO2)2 where M is a cation selected form the class consisting of a metal ion and a nitrogen-containing ion, which comprises contacting a carbamate with a n... | 03/30/1993 |
| 5075265 | Preparation of aluminum oxynitride from organosiloxydihaloalanes Aluminum oxynitride is prepared by the pyrolysis of an organosiloxydihaloalane such as trimethylsiloxydichloroalane in the presence of a nitrogen-containing atmosphere. The organosiloxydihaloalane may conveniently be prepared by reacting together an alumi... | 12/24/1991 |
| 4983368 | Method of producing ଲ-sialon fine powder A method of producing a ଲ-sialon fine powder which comprises using a silane compound represented by the general formula of SiHx Cl4-x (0ࣘxࣘ4) as a Si source, aluminum chloride as an Al source and an ether represented by the... | 01/08/1991 |
| 4964016 | Multi-layer ceramic capacitors having, as the conductive elements therein, layers of perovskites containing oxygen and nitrogen The present invention relates to new conductive perovskites containing oxygen and nitrogen, their preparation and their use particularly as electrode material. The conductive perovskites containing oxygen and nitrogen according to the invention correspond... | 10/16/1990 |
