Donald E. Witkin

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Warren, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Temperature control method and apparatus
- Patent number 4,066,868
- Issue date Jan 3, 1978
- National Forge Company
- Donald E. Witkin
- C30 - CRYSTAL GROWTH
Information Patent Grant
Hot isostatic press system
- Patent number 4,013,394
- Issue date Mar 22, 1977
- National Forge Company
- Donald E. Witkin
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Multizone electrical furnace methods and apparatus
- Patent number 4,011,430
- Issue date Mar 8, 1977
- National Forge Company
- Donald Eli Witkin
- G05 - CONTROLLING REGULATING
Information Patent Grant
Temperature control apparatus
- Patent number 3,971,876
- Issue date Jul 27, 1976
- National Forge Company
- Donald E. Witkin
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for rapid isostatic pressing
- Patent number 3,931,382
- Issue date Jan 6, 1976
- National Forge Company
- Donald E. Witkin
- B22 - CASTING POWDER METALLURGY