Mary E. Shaffer

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Towanda, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparation of WC-NI grade powder
- Patent number 5,057,147
- Issue date Oct 15, 1991
- GTE Products Corporation
- Mary E. Shaffer
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of producing monotungsten carbide powder
- Patent number 4,664,899
- Issue date May 12, 1987
- GTE Products Corporation
- Edward R. Kimmel
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for producing refractory powder
- Patent number 4,478,888
- Issue date Oct 23, 1984
- GTE Products Corporation
- Mary L. Benjamin
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for producing refractory powder
- Patent number 4,456,484
- Issue date Jun 26, 1984
- GTE Products Corporation
- Mary L. Benjamin
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for producing refractory powder
- Patent number 4,397,889
- Issue date Aug 9, 1983
- GTE Products Corporation
- Mary Lou Benjamin
- B22 - CASTING POWDER METALLURGY