John K. Wittle

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Berwyn, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tubular member
- Patent number 4,516,608
- Issue date May 14, 1985
- Electro-Petroleum, Inc.
- Charles H. Titus
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for passing electrical current through an underground for...
- Patent number 4,495,990
- Issue date Jan 29, 1985
- Electro-Petroleum, Inc.
- Charles H. Titus
- E21 - EARTH DRILLING MINING
Information Patent Grant
In situ method for yielding a gas from a subsurface formation of hy...
- Patent number 4,473,114
- Issue date Sep 25, 1984
- Electro-Petroleum, Inc.
- Christy W. Bell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for the decomposition of hazardous materials and the like
- Patent number 4,431,612
- Issue date Feb 14, 1984
- Electro-Petroleum, Inc.
- Christy W. Bell
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Method of in situ gasification
- Patent number 4,382,469
- Issue date May 10, 1983
- Electro-Petroleum, Inc.
- Christy W. Bell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for removing liquid from chemically-precipitated sludge
- Patent number 4,367,132
- Issue date Jan 4, 1983
- Electro-Petroleum, Inc.
- Christy W. Bell
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL