Alloys or metallic compositions – Ferrous – Nine percent or more chromium containing
Reexamination Certificate
2003-01-28
2008-11-04
Sheehan, John P. (Department: 1793)
Alloys or metallic compositions
Ferrous
Nine percent or more chromium containing
Reexamination Certificate
active
07445749
ABSTRACT:
The present invention is directed towards an austenitic, stainless steel series 300 alloy having improved biocompatible characteristics. The modified stainless steel alloy consists essentially of, in weight percent, aboutCMnSiPS≦0.030≦2.00≦0.750≦0.023≦0.010CrMoNiFe“X”8.5-11.50.0-6.256.5-7.546.185-74.0005.0-10.0whereby variable “x” could be comprised from a group consisting of Gold, Osmium, Palladium, Platinum, Rhenium, Tantalum, or Tungsten. The alloy provides a unique combination of strength, ductility, corrosion resistance, and other mechanical properties which also has improved biocompatible characteristics.
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Boston Scientific Scimed Inc.
Fish & Richardson P.C.
Roe Jessee
Sheehan John P.
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