Dustin Deon Gass

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Spring Branch, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and device with biasing force for sealing a well
- Patent number 7,975,761
- Issue date Jul 12, 2011
- Hydril USA Manufacturing LLC
- Michael Wayne Berckenhoff
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Method and Device with Biasing Force for Sealing a Well
- Publication number 20100155086
- Publication date Jun 24, 2010
- Michael Wayne Berckenhoff
- E21 - EARTH DRILLING MINING