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Class Information
Number: 420/430
Name: Alloys or metallic compositions > Tungsten base
Description: Alloy, or metallic composition which contains over 50 percent of tungsten.










Sub-classes under this class:

Class Number Class Name Patents
420/431 Carbon, boron or nitrogen containing 27
420/432 Rhenium or noble metal containing 19


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8613885 Solder alloys for repairing a component Dec. 24, 2013
8486541 Co-sintered multi-system tungsten alloy composite Jul. 16, 2013
8349248 Metallic material and methods of making and using same Jan. 8, 2013
8177947 Sputtering target May. 15, 2012
8003765 Methods, antibodies and kits for detecting cerebrospinal fluid in a sample Aug. 23, 2011
7803314 Non-toxic shot formulation and method of making Sep. 28, 2010
7718117 Tungsten sputtering target and method of manufacturing the target May. 18, 2010
7608560 Platinum-titanium-tungsten fuel cell catalyst Oct. 27, 2009
7553381 Crystalline metal film Jun. 30, 2009
6914032 Method of producing tungsten-copper based composite powder and sintered alloys for heat-sink using said composite powder Jul. 5, 2005
6899926 Alloy coating, method for forming the same, and member for high temperature apparatuses May. 31, 2005
6890480 Ductile medium- and high-density, non-toxic shot and other articles and method for producing the same May. 10, 2005
6830637 Large diameter tungsten-lanthana rod Dec. 14, 2004
6830827 Alloy coating, method for forming the same, and member for high temperature apparatuses Dec. 14, 2004
6823798 Tungsten-containing articles and methods for forming the same Nov. 30, 2004
6815066 Composite material containing tungsten, tin and organic additive Nov. 9, 2004
6796162 Method and tool of tungsten/heavy metal alloy for hot-forging solid state copper and copper alloys Sep. 28, 2004
6746782 Diffusion barrier coatings, and related articles and processes Jun. 8, 2004
6562207 Refractory metal silicide alloy sputter targets, use and manufacture thereof May. 13, 2003
6527880 Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same Mar. 4, 2003
6447715 Methods for producing medium-density articles from high-density tungsten alloys Sep. 10, 2002
6270549 Ductile, high-density, non-toxic shot and other articles and method for producing same Aug. 7, 2001
6200694 Mo-W material for formation of wiring, Mo-W target and method for production thereof, and Mo-W wiring thin film Mar. 13, 2001
6190466 Non-sag tungsten wire Feb. 20, 2001
6090227 Structural units for glass melts made from a molybdenum/tungsten alloy Jul. 18, 2000
6045601 Non-magnetic, high density alloy Apr. 4, 2000
5919321 Target material of metal silicide Jul. 6, 1999
5916363 Oriented molybdenum or tungsten single crystal and manufacturing method thereof Jun. 29, 1999
5896553 Single phase tungsten-titanium sputter targets and method of producing same Apr. 20, 1999
5889220 Copper-tungsten alloys and their manufacturing methods Mar. 30, 1999
5863492 Ternary heavy alloy based on tungsten-nickel-manganese Jan. 26, 1999
5831188 Composite shots and methods of making Nov. 3, 1998
5821441 Tough and corrosion-resistant tungsten based sintered alloy and method of preparing the same Oct. 13, 1998
5760317 Flow softening tungsten based composites Jun. 2, 1998
5740516 Firearm bolt Apr. 14, 1998
5738948 Electrode-wiring material and electrode-wiring substrate using the same Apr. 14, 1998
5512240 Tungsten electrode material Apr. 30, 1996
5403375 Fine-particle metal powders Apr. 4, 1995
5306364 High toughness tungsten based heavy alloy containing La and Ca. manufacturing thereof Apr. 26, 1994
5306569 Titanium-tungsten target material and manufacturing method thereof Apr. 26, 1994
5294269 Repeated sintering of tungsten based heavy alloys for improved impact toughness Mar. 15, 1994
5261941 High strength and density tungsten-uranium alloys Nov. 16, 1993
5234487 Method of producing tungsten-titanium sputter targets and targets produced thereby Aug. 10, 1993
5217818 Substrate material for magnetic head and magnetic head using same Jun. 8, 1993
H1146 Plasma spraying tungsten heavy alloys Mar. 2, 1993
H1075 Tungsten heavy alloys Jul. 7, 1992
5087299 Vibration-proof tungsten wire Feb. 11, 1992
5077006 Heat resistant alloys Dec. 31, 1991
5064462 Tungsten penetrator Nov. 12, 1991
5051414 Inhibition of HIV and other retroviruses by polyoxoanions Sep. 24, 1991

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