Don A. Hopman

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Alvin, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Annular electrical wet connect
- Patent number 7,644,755
- Issue date Jan 12, 2010
- Baker Hughes Incorporated
- Carl W. Stoesz
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Annular electrical wet connect
- Publication number 20080047703
- Publication date Feb 28, 2008
- Carl W. Stoesz
- E21 - EARTH DRILLING MINING