Jeffrey E. Stemke

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Petaluma, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Lubricating oil containing hydroperoxidized ethylene copolymers and...
- Patent number 4,925,579
- Issue date May 15, 1990
- Chevron Research Company
- Jeffrey E. Stemke
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Hydroperoxidized ethylene copolymers and terpolymers as dispersants...
- Patent number 4,891,146
- Issue date Jan 2, 1990
- Chevron Research Company
- Jeffrey E. Stemke
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Grease composition
- Patent number 4,661,276
- Issue date Apr 28, 1987
- Chevron Research Company
- Jeffrey E. Stemke
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Grease composition with improved low shear stability
- Patent number 4,436,649
- Issue date Mar 13, 1984
- Chevron Research Company
- Jeffrey E. Stemke
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...