Nelson; Norman A.

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Ratcheting and threaded well connector
- Patent number 4,989,902
- Issue date Feb 5, 1991
- Nelson; Norman A.
- Samuel W. Putch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Subsea well completion system and method of operation
- Patent number 4,958,686
- Issue date Sep 25, 1990
- Nelson; Norman A.
- Samuel W. Putch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well suspension assembly
- Patent number 4,773,477
- Issue date Sep 27, 1988
- Nelson; Norman A.
- Samuel W. Putch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Recockable well hanger
- Patent number 4,232,889
- Issue date Nov 11, 1980
- Nelson; Norman A.
- Samuel W. Putch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Locking assembly and a seal assembly for a well
- Patent number 3,972,546
- Issue date Aug 3, 1976
- Nelson; Norman A.
- Samuel W. Putch
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

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