L. Steven Landriault

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Subsea diverter and rotating drilling head
- Patent number 6,244,359
- Issue date Jun 12, 2001
- ABB Vetco Gray, Inc.
- Charles D. Bridges
- E21 - EARTH DRILLING MINING
Information Patent Grant
Elastomeric guard seal for tubular connections
- Patent number 4,928,999
- Issue date May 29, 1990
- Hydril Company
- L. Steven Landriault
- E21 - EARTH DRILLING MINING
Information Patent Grant
Locking ring for oil well tool
- Patent number 4,903,992
- Issue date Feb 27, 1990
- Vetco Gray Inc.
- Charles E. Jennings
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well pipe joint
- Patent number 4,688,832
- Issue date Aug 25, 1987
- Hydril Company
- Donald J. Ortloff
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tubular connection
- Patent number 4,629,224
- Issue date Dec 16, 1986
- Hydril Company
- L. Steven Landriault
- E21 - EARTH DRILLING MINING
Information Patent Grant
Joint and joint components for pipe sections subjected to axial com...
- Patent number 4,537,428
- Issue date Aug 27, 1985
- Hydril Company
- L. Steven Landriault
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tubular connection with cylindrical and tapered stepped threads
- Patent number 4,537,429
- Issue date Aug 27, 1985
- Hydril Company
- L. Steven Landriault
- E21 - EARTH DRILLING MINING