Patrick H. Hess

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Diamond Bar, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Selective permeability reduction with polymerizable monomers around...
- Patent number 4,250,963
- Issue date Feb 17, 1981
- Chevron Research Company
- Patrick H. Hess
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for delaying the setting of an acid-settable liquid in a ter...
- Patent number 4,015,995
- Issue date Apr 5, 1977
- Chevron Research Company
- Patrick H. Hess
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for delaying the setting of and acid-settable liquid in a te...
- Patent number 3,943,084
- Issue date Mar 9, 1976
- Chevron Research Company
- Patrick H. Hess
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...