William H. Petersen

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Mandeville, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Rocker arm marine tensioning system
- Patent number 6,585,455
- Issue date Jul 1, 2003
- Shell Oil Company
- William Henry Petersen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Subsea wellhead connections
- Patent number 5,320,175
- Issue date Jun 14, 1994
- Shell Oil Company
- Paul B. Ritter
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic stab subassembly for remotely operated vehicle vertical i...
- Patent number 5,143,483
- Issue date Sep 1, 1992
- Shell Offshore Inc.
- William H. Petersen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well valve assembly method and apparatus
- Patent number 4,784,225
- Issue date Nov 15, 1988
- Shell Offshore Inc.
- William H. Petersen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Buoyant member riser tensioner method and apparatus
- Patent number 4,657,439
- Issue date Apr 14, 1987
- Shell Offshore Inc.
- William H. Petersen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Subsea pull-in tool
- Patent number 4,591,292
- Issue date May 27, 1986
- Shell Offshore Inc.
- James W. Stevens
- E21 - EARTH DRILLING MINING