Gabriel G. Alexander

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Marine riser anti-collapse valve
- Patent number 4,719,937
- Issue date Jan 19, 1988
- Hydril Company
- Joseph R. Roche
- E21 - EARTH DRILLING MINING
Information Patent Grant
Diverter/bop system and method for a bottom supported offshore dril...
- Patent number 4,646,844
- Issue date Mar 3, 1987
- Hydril Company
- Joseph R. Roche
- E21 - EARTH DRILLING MINING
Information Patent Grant
Diverter/bop system and method for a bottom supported offshore dril...
- Patent number 4,597,447
- Issue date Jul 1, 1986
- Hydril Company
- Joseph R. Roche
- E21 - EARTH DRILLING MINING
Information Patent Grant
Diverter/BOP system and method for a bottom supported offshore dril...
- Patent number 4,524,832
- Issue date Jun 25, 1985
- Hydril Company
- Joseph R. Roche
- E21 - EARTH DRILLING MINING
Information Patent Grant
Flow diverter
- Patent number 4,456,062
- Issue date Jun 26, 1984
- Hydril Company
- Joseph R. Roche
- E21 - EARTH DRILLING MINING