James L. Sawyer

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Friendswood, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic cement and composition employing the same
- Patent number 4,997,484
- Issue date Mar 5, 1991
- Lone Star Industries, Inc.
- Billy B. Gravitt
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Cement composition curable at low temperatures
- Patent number 4,842,649
- Issue date Jun 27, 1989
- Pyrament, Inc.
- Richard F. Heitzmann
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Mineral binder and compositions employing the same
- Patent number 4,642,137
- Issue date Feb 10, 1987
- Lone Star Industries, Inc.
- Richard F. Heitzmann
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Mineral binder and compositions employing the same
- Patent number 4,640,715
- Issue date Feb 3, 1987
- Lone Star Industries, Inc.
- Richard E. Heitzmann
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Early high-strength mineral polymer
- Patent number 4,509,985
- Issue date Apr 9, 1985
- Pyrament Inc.
- Joseph Davidovits
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Early high-strength portland cement and method of manufacture
- Patent number 4,160,674
- Issue date Jul 10, 1979
- Lone Star Industries
- James L. Sawyer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES