N. Gokul Nath

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Carson, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Loose-fill, thermal insulation
- Patent number 4,302,344
- Issue date Nov 24, 1981
- Grefco, Inc.
- David L. Ruff
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Settle resistant loose-fill perlite insulation comprising particles...
- Patent number 4,212,755
- Issue date Jul 15, 1980
- Grefco, Inc.
- David L. Ruff
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES