Metal treatment – Stock – Noble metal base
Reexamination Certificate
2008-04-08
2008-04-08
King, Roy (Department: 1793)
Metal treatment
Stock
Noble metal base
C420S463000
Reexamination Certificate
active
07354488
ABSTRACT:
A family of alloys for use in medical, electrical contact and jewelry applications includes as primary components palladium, and boron and at least one of ruthenium, rhenium, platinum, gold, zirconium, tungsten, cobalt, nickel, tantalum and iridium. An alternative embodiment includes palladium and rhenium and/or ruthenium with an additional element iridium, platinum, tungsten, boron, gold, zirconium, cobalt, nickel and tantalum. The present alloy family has a high strength, high radio opacity, and biocompatibility characteristics, while also being workable into various configurations. Where required, some of the alloys also offer post form, heat treatment (age hardening) capabilities for even higher hardness and strength levels.
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Klein Arthur S.
Smith, III Edward F.
Deringer-Ney, Inc.
King Roy
Morillo Janelle
Schiff & Hardin LLP
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