H. McDonald Hobgood

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Murrysville, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for growing high purity single crystal silicon...
- Patent number 5,985,024
- Issue date Nov 16, 1999
- Northrop Grumman Corporation
- Vijay Balakrishna
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of growing 4H silicon carbide crystal
- Patent number 5,873,937
- Issue date Feb 23, 1999
- Northrop Grumman Corporation
- Richard H. Hopkins
- C30 - CRYSTAL GROWTH