| Patents for C22C 27 - Alloys based on rhenium or a refractory metal not mentioned in groups or (3,486) |
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| 11/13/1991 | EP0456054A2 Low sag tungsten filaments and their use in lamps |
| 11/12/1991 | US5064462 Tungsten penetrator |
| 10/10/1991 | CA2039916A1 Corrosion-resistant material for sulfur-containing alkali metal salts and equipment for producing polyarylene sulfide using the same, and polyarylene sulfide and process for producing the same |
| 10/02/1991 | EP0448721A1 Giant particle and single crystal of chromium and production thereof |
| 09/11/1991 | EP0446009A1 Acidproof materials |
| 09/11/1991 | EP0445284A1 Alloy core modification for tin core superconducting materials |
| 09/05/1991 | WO1991013044A1 Chromium-based nitrified baked material and method of obtaining it |
| 09/03/1991 | US5045400 Composition for and method of metallizing ceramic surface, and surface-metallized ceramic article |
| 09/03/1991 | US5045281 Silver and/or copper electroconductive component and arc-proof component selected from certain metals, their carbides or borides |
| 08/08/1991 | DE4002974A1 Doped molybdenum material esp. for lamp mfr. - with controlled aluminium content for high quality and low reject rate |
| 08/08/1991 | DE4002973A1 Molybdenum material esp. for lamp mfr. - contains aluminium as sole dopant |
| 08/07/1991 | EP0439776A1 Molybdenum material, in particular for the fabrication of lamps |
| 08/07/1991 | EP0439775A1 Molybdenum material, especially for making lamps |
| 08/07/1991 | EP0147434B1 Wear-resistant amorphous materials and articles, and process for preparation thereof |
| 07/31/1991 | EP0438971A1 Coated metallic substrate |
| 07/31/1991 | CN1013379B Rare earth tungsten electrode material and its production method |
| 07/17/1991 | CN1053093A Prodn. of high-chromium, low-phosphorus, and low carbon chromium-iron |
| 07/16/1991 | US5032357 Microstructure, high strength, gas turbine engines |
| 07/16/1991 | US5032196 High hardness, strength, corrosion resistance |
| 07/03/1991 | CN1013042B Process for reduction of dispersion of mechanical characteristic values of tungsten-nickel-iron alloy |
| 07/02/1991 | US5028390 Containing lanthanide or actinide, improved strength, powder metallurgy fabrication techniques |
| 06/26/1991 | EP0433670A1 Amorphous alloys having superior processability |
| 06/25/1991 | US5026522 Nb-Ti-Hf high temperature alloys |
| 06/05/1991 | EP0429796A1 Heat-resistant materials |
| 05/29/1991 | EP0428730A1 Ink jet head having heat-generating resistor constituted of non-monocrystalline substance containing iridium, tantalum and aluminum, and ink jet device equipped with said head |
| 05/29/1991 | CN1012688B High performance electrodeposited chromium layers |
| 05/28/1991 | US5019334 Low density high strength alloys of Nb-Ti-Al for use at high temperatures |
| 05/28/1991 | US5019330 Method of forming improved tungsten ingots |
| 05/28/1991 | US5019156 Sintered electric contact material for vacuum switch tube and process for manufacturing the same |
| 05/08/1991 | EP0425972A1 Oxidation- and corrosion-resistant heat-resisting alloy, based on an intermetallic compound |
| 05/08/1991 | EP0425679A1 Ink jet head having heat-generating resistor constituted of non-monocrystalline substance containing iridium and tantalum, and ink jet device equipped with said head |
| 05/02/1991 | EP0425336A1 Coating made of a chromium-nitrogen alloy for confering good tribological properties to a substrate and process for its manufacture |
| 05/01/1991 | CN1012478B Suspended crystallization method for producing electrode material of tungsten-rare earth oxide |
| 04/24/1991 | EP0424098A2 High temperature electrode material |
| 04/18/1991 | WO1991005070A1 Giant particle and single crystal of chromium and production thereof |
| 04/16/1991 | US5008071 Method for producing improved tungsten nickel iron alloys |
| 04/10/1991 | CN1050563A Controlling oxygen content in tantalum material |
| 04/10/1991 | CN1050511A Preparation method for tungsten cerium powder |
| 04/09/1991 | US5006307 Hafnium containing niobium, titanium, aluminum high temperature alloy |
| 04/04/1991 | WO1991004583A1 Alloy core modification for tin core superconducting materials |
| 03/26/1991 | US5002730 Preparation of vanadium rich hydrogen storage alloy materials |
| 03/19/1991 | US5000913 Hafnium containing high temperature Nb-Al alloy |
| 02/13/1991 | EP0412655A2 Electrical device with feedthroughs comprising glass seals |
| 02/13/1991 | EP0412171A1 Non-monocrystalline substance containing iridium, tantalum and aluminum |
| 02/05/1991 | US4990308 Chromium containing high temperature Nb--Ti--Al alloy |
| 01/30/1991 | EP0410935A1 Preparation of vanadium rich hydrogen storage alloy materials |
| 01/23/1991 | EP0409794A1 Alloy preparation of hydrogen storage material |
| 01/22/1991 | US4986961 Fine grain tungsten heavy alloys containing additives |
| 01/13/1991 | CA2020961A1 Lithium thionyl chloride resistant feedthrough |
| 01/08/1991 | US4983358 Niobium-aluminum base alloys having improved, high temperature oxidation resistance |
| 01/08/1991 | US4983228 Niobium-tin wire |
| 12/27/1990 | EP0404405A2 Superconducting device |
| 12/26/1990 | CN1048066A Novel tungsten alloy ball |
| 12/25/1990 | US4980244 Oxidation resistance; jet engines |
| 12/20/1990 | CA2019009A1 Superconducting device |
| 12/19/1990 | EP0402498A1 Method of manufacturing tough and porous getters by means of hydrogen pulverization and getters produced thereby |
| 12/12/1990 | EP0401595A2 Sintered electric contact material for vacuum switch tube and process for manufacturing the same |
| 12/11/1990 | US4976932 Carbon containing compound treating apparatus with resistance to carbon deposition |
| 11/27/1990 | US4973527 Process for making filamentary superconductors using tin-magnesium eutectics |
| 11/14/1990 | EP0397305A1 Method of making high velocity armor penetrator material |
| 11/06/1990 | USH845 Advanced vanadium alloys for magnetic fusion applications |
| 10/16/1990 | US4963240 Sputtering alloy target and method of producing an alloy film |
| 10/13/1990 | CA2014588A1 High velocity armor penetrator |
| 10/03/1990 | EP0389940A2 Annealing method for length stabilized Nb-Sn wire |
| 10/03/1990 | CA2009599A1 Material system for high temperature jet engine operation |
| 10/02/1990 | US4960563 Heavy tungsten-nickel-iron alloys with very high mechanical characteristics |
| 10/02/1990 | US4960471 Heating in hydrogen with encapsulated getter metal |
| 09/30/1990 | CA2001056A1 Length stabilized nb-sn wire and annealing method |
| 09/26/1990 | EP0388527A1 Improved titanium aluminide alloys |
| 09/26/1990 | CN1009740B Corrosion resistant amorphous chromium alloy compositions |
| 09/26/1990 | CN1009739B Making method of niobium alloy |
| 09/20/1990 | CA2010672A1 Titanium aluminide alloys |
| 09/12/1990 | CN1045312A Contact forming meterial for vacuum interrupter |
| 09/11/1990 | US4956144 Heat resistant alloys |
| 09/11/1990 | CA1273829A1 Corrosion resistant amorphous chromium-metalloid alloy compositions |
| 09/11/1990 | CA1273828A1 Energy storage devices and amorphous alloy electrodes for use in acid environments |
| 09/05/1990 | EP0385380A2 Contact forming material for a vacuum interrupter |
| 08/31/1990 | WO1990010089A1 New non-monocrystalline substance containing iridium, tantalum and aluminum |
| 08/29/1990 | WO1990009888A1 Ink jet head having heat-generating resistor constituted of non-monocrystalline substance containing iridium, tantalum and aluminum, and ink jet device equipped with said head |
| 08/29/1990 | WO1990009887A1 Ink jet head having heat-generating resistor constituted of non-monocrystalline substance containing iridium, tantalum and aluminum, and ink jet device equipped with said head |
| 08/21/1990 | US4949645 High density materials and products |
| 08/14/1990 | US4948423 Vacuum induction melting in high density, high purity graphite crucible |
| 08/08/1990 | EP0381631A2 Getter materials for the vacuum insulation of liquid hydrogen storage vessels or transport lines |
| 07/31/1990 | CA1272047A1 Corrosion resistant amorphous chromium alloy compositions |
| 07/18/1990 | EP0377810A1 Niobium base high temperature alloy |
| 07/10/1990 | US4940404 Method of making a high velocity armor penetrator |
| 07/10/1990 | US4940300 Porous coating of zirconium based alloy |
| 07/04/1990 | EP0375953A1 Hafnium containing high temperature alloy |
| 07/03/1990 | US4938799 Heavy tungsten-nickel-iron alloys with very high mechanical characteristics and process for the production of said alloys |
| 06/29/1990 | CA2002630A1 Niobium base high temperature alloy |
| 06/27/1990 | EP0374507A1 Niobium base high temperature alloy |
| 06/27/1990 | CN1008542B Method for manufacturing mo-iron from mo ore |
| 06/22/1990 | CA2002634A1 Niobium base high temperature alloy |
| 06/22/1990 | CA2002631A1 Hafnium containing high temperature alloy |
| 06/13/1990 | EP0372322A1 Hafnium containing niobium, titanium, aluminium high temperature alloy |
| 06/13/1990 | EP0372312A1 Chromium containing high temperature alloy |
| 06/13/1990 | EP0372309A1 Hafnium containing high temperature alloy |
| 06/06/1990 | CN1042675A Suspended crystallization method for producing electrode material of tungsten-rare earth oxide |
| 06/05/1990 | US4931254 Nb-Ti-Al-Hf-Cr alloy |
| 06/05/1990 | US4931252 Process for reducing the disparities in mechanical values of tungsten-nickel-iron alloys |