Randy Lemley

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Pine Grove, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Cristobalite-free mullite grain and method of producing same
- Patent number 5,948,713
- Issue date Sep 7, 1999
- North American Refractories Co.
- William D. Smiley
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of producing metakaolin
- Patent number 5,792,251
- Issue date Aug 11, 1998
- North American Refractories Co.
- William D. Smiley
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES