Jeffrey F. Simmons

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for troubleshooting gas-lift wells
- Patent number 5,063,772
- Issue date Nov 12, 1991
- Shell Oil Company
- Scott L. Wellington
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for troubleshooting gas-lift wells
- Patent number 5,031,697
- Issue date Jul 16, 1991
- Shell Oil Company
- Scott L. Wellington
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for troubleshooting gas-lift wells
- Patent number 4,972,704
- Issue date Nov 27, 1990
- Shell Oil Company
- Scott L. Wellington
- E21 - EARTH DRILLING MINING