Stephen P. Simons

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Kingwood, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Rubber riveting of molded parts
- Patent number 5,906,375
- Issue date May 25, 1999
- Hydril Company
- Kenneth D. Young
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowout preventer packing element with metallic inserts
- Patent number 5,851,013
- Issue date Dec 22, 1998
- Hydril Company
- Stephen P. Simons
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fibrous seal for blowout preventer
- Patent number 5,713,581
- Issue date Feb 3, 1998
- Hydril Company
- Douglas W. Carlson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Free flow low energy pipe protector
- Patent number 5,542,454
- Issue date Aug 6, 1996
- Hydrill Company
- Douglas W. Carlson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rubber riveting of molded parts
- Patent number 5,405,467
- Issue date Apr 11, 1995
- Hydril Company
- Kenneth D. Young
- E21 - EARTH DRILLING MINING
Information Patent Grant
Safety sub with asymmetrical wall elastomeric closure for retaining...
- Patent number 5,364,064
- Issue date Nov 15, 1994
- Hydril Company
- Douglas W. Carlson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ram type blowout preventer having improved ram front packings
- Patent number 5,180,137
- Issue date Jan 19, 1993
- Hydril Company
- Douglas W. Carlson
- E21 - EARTH DRILLING MINING