Gary F. Ruff

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Saginaw, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Mold and method for making variable thickness cast articles
- Patent number 5,213,149
- Issue date May 25, 1993
- CMI International, Inc.
- Gary F. Ruff
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Mold and method for making variable hardness castings
- Patent number 5,072,773
- Issue date Dec 17, 1991
- CMI International, Inc.
- Gary F. Ruff
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method of casting a metal matrix composite
- Patent number 4,901,781
- Issue date Feb 20, 1990
- General Motors Corporation
- Gary F. Ruff
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Countergravity casting apparatus and process for casting thin-walle...
- Patent number 4,865,113
- Issue date Sep 12, 1989
- General Motors Corporation
- Karl D. Voss
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Countergravity casting mold and core assembly
- Patent number 4,641,703
- Issue date Feb 10, 1987
- General Motors Corporation
- Karl D. Voss
- B22 - CASTING POWDER METALLURGY