John F. Wiechel

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Columbus, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Sand control employing halogenated, oil soluble hydrocarbons
- Patent number 4,494,605
- Issue date Jan 22, 1985
- Texaco Inc.
- John F. Wiechel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Varying temperature oil recovery method
- Patent number 4,465,137
- Issue date Aug 14, 1984
- Texaco Inc.
- Alvin J. Sustek
- E21 - EARTH DRILLING MINING