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Richard W. Hildreth
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Holliston, MA, US
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last 30 patents
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Patent Grant
Tantalum production via a reduction of K2TAF7, with diluent salt, w...
Patent number
5,442,978
Issue date
Aug 22, 1995
H. C. Starck, Inc.
Richard Hildreth
B22 - CASTING POWDER METALLURGY
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Patent Grant
Capacitor grade tantalum powder
Patent number
4,957,541
Issue date
Sep 18, 1990
NRC, Inc.
Terrance B. Tripp
B22 - CASTING POWDER METALLURGY