Gold-based alloy, free of silver and tin, for dental copings or abutments

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United States of America Patent

PATENT NO 8845959
APP PUB NO 20120039744A1
SERIAL NO

13050657

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Abstract

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Alloys and dental copings or abutments formed of alloys include 50-60 wt % gold, 5-14 wt % platinum, 0.1-3.0 wt % iridium and the remainder palladium. Other alloys and dental copings or abutments formed of alloys include 58 wt % gold, 10 wt % platinum, 1.0 wt % iridium, and 31 wt % palladium. The alloys are capable of withstanding temperature profiles during casting and multiple high temperature exposures of porcelain firing without excessive softening. The alloys also exhibit advantageous shear strain properties giving the alloys improved manufacturability characteristics.

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Patent Owner(s)

Patent OwnerAddress
DERINGER-NEY INCNEY INDUSTRIAL PARK 2 DOUGLAS STREET BLOOMFIELD CT 06002

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hale, Peter Windsor, US 15 187
Klein, Arthur S Orange, US 12 50
Smith,, III Edward F Madison, US 10 112

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