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Class Information
Number: 420/475
Name: Alloys or metallic compositions > Copper base > Tin containing > Lead containing > Zinc containing
Description: Alloy, or metallic composition which additionally contains zinc.

Patents under this class:

Patent Number Title Of Patent Date Issued
8435361 Copper-zinc alloy for a valve guide May. 7, 2013
7736448 Nano icrystals copper material with super high strength and conductivity and method of preparing thereof Jun. 15, 2010
7608157 Heat resistance copper alloy materials Oct. 27, 2009
6303235 Copper-based sliding alloy Oct. 16, 2001
6103188 High-conductivity copper microalloys obtained by conventional continuous or semi-continuous casting Aug. 15, 2000
5653827 Brass alloys Aug. 5, 1997
5523006 Ultrafine powder lubricant Jun. 4, 1996
5507885 Copper-based alloy Apr. 16, 1996
5346668 Copper based alloy for wear resistant sliding layer and sliding member Sep. 13, 1994
5286444 Copper bearing alloy Feb. 15, 1994
4958569 Wrought copper alloy-shaped charge liner Sep. 25, 1990
4879094 Cu--Sn--Zn--Bi alloys Nov. 7, 1989
4877577 Copper alloy lead frame material for semiconductor devices Oct. 31, 1989
4811666 Solid projectiles Mar. 14, 1989
4666667 High-strength, high-conductivity copper alloy May. 19, 1987
4417929 Special brass with dezincification corrosion resistance Nov. 29, 1983
4406858 Copper-base alloys containing strengthening and ductilizing amounts of hafnium and zirconium and method Sep. 27, 1983
4207096 Method of producing graphite-containing copper alloys Jun. 10, 1980
4113474 Copper alloys of excellent corrosion resistance, moldability and workability Sep. 12, 1978
4015982 Mold for continuous casting process Apr. 5, 1977
3982933 Brass alloy Sep. 28, 1976
3976478 Copper alloy of excellent corrosion resistance, mechanical strength and castability Aug. 24, 1976
3972747 Co-Si-X aligned eutectics Aug. 3, 1976

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