John W. Sibert

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Venice, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for removing sulfur from coal
- Patent number 5,296,007
- Issue date Mar 22, 1994
- ENSCI Inc.
- Thomas J. Clough
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process for treating hydrocarbons
- Patent number 4,946,578
- Issue date Aug 7, 1990
- Ensci, Inc.
- Thomas J. Clough
- E21 - EARTH DRILLING MINING
Information Patent Grant
Metal value recovery from carbonaceous ores
- Patent number 4,801,329
- Issue date Jan 31, 1989
- Ensci Incorporated
- Thomas J. Clough
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Metal value recovery
- Patent number 4,765,827
- Issue date Aug 23, 1988
- Ensci, Inc.
- Thomas J. Clough
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Photoconductive device containing zinc oxide transparent conductive...
- Patent number 4,623,601
- Issue date Nov 18, 1986
- Atlantic Richfield Company
- Steven C. Lewis
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Unitary plate electrode
- Patent number 4,547,443
- Issue date Oct 15, 1985
- Atlantic Richfield Company
- John J. Rowlette
- H01 - BASIC ELECTRIC ELEMENTS