Robert W. Campbell

Person

Lafayette, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Sulfur cement-aggregate compositions and methods for preparing
- Patent number 4,496,659
- Issue date Jan 29, 1985
- Chevron Research Company
- Edward L. Nimer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Automatic shutoff for sulfur melter apparatus
- Patent number 4,383,821
- Issue date May 17, 1983
- Chevron Research Company
- Robert W. Campbell
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Sulfur cement-aggregate-organosilane compositions and methods for p...
- Patent number 4,376,830
- Issue date Mar 15, 1983
- Chevron Research Company
- Edward L. Nimer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sulfur cement-aggregate compositions and methods for preparing
- Patent number 4,332,911
- Issue date Jun 1, 1982
- Chevron Research
- Edward L. Nimer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for producing concrete structures of high strength
- Patent number 4,198,245
- Issue date Apr 15, 1980
- Chevron Research Company
- Richard L. Ferm
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
High-strength concrete objects
- Patent number 4,193,809
- Issue date Mar 18, 1980
- Chevron Research Company
- Richard L. Ferm
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sulfur composition
- Patent number 3,997,355
- Issue date Dec 14, 1976
- Chevron Research Company
- Lawrence E. Santucci
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Robert W. Campbell

Person

Patents Grantslast 30 patents

Sulfur cement-aggregate compositions and methods for preparing

Automatic shutoff for sulfur melter apparatus

Sulfur cement-aggregate-organosilane compositions and methods for p...

Sulfur cement-aggregate compositions and methods for preparing

Process for producing concrete structures of high strength

High-strength concrete objects

Sulfur composition