Charles M. Helms

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Danbury, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Articulated drillstring entry apparatus and method
- Patent number 7,131,497
- Issue date Nov 7, 2006
- Specialty Rental Tools & Supply, LP
- Charles M. Helms
- E21 - EARTH DRILLING MINING
Information Patent Grant
High tensile loading top entry sub and method
- Patent number 7,100,699
- Issue date Sep 5, 2006
- Specialty Rental Tools & Supply, LP
- Charles M. Helms
- E21 - EARTH DRILLING MINING
Information Patent Grant
Lockable swivel apparatus and method
- Patent number 6,244,345
- Issue date Jun 12, 2001
- Specialty Rental Tool & Supply Co., Inc.
- Charles M. Helms
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ARTICULATED DRILLSTRING ENTRY APPARATUS AND METHOD
- Publication number 20050211443
- Publication date Sep 29, 2005
- Charles M. Helms
- E21 - EARTH DRILLING MINING
Information Patent Application
High tensile loading top entry sub and method
- Publication number 20040177973
- Publication date Sep 16, 2004
- Charles M. Helms
- E21 - EARTH DRILLING MINING