David W. Watson

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods of manufacturing rotary drag bits including a central regio...
- Patent number 7,617,747
- Issue date Nov 17, 2009
- Baker Hughes Incorporated
- Volker Richert
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drag bit including a central region having a plurality of cu...
- Patent number 7,278,499
- Issue date Oct 9, 2007
- Baker Hughes Incorporated
- Volker Richert
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ROTARY DRAG BIT INCLUDING A CENTRAL REGION HAVING A PLURALITY OF CU...
- Publication number 20070284153
- Publication date Dec 13, 2007
- BAKER HUGHES INCORPORATED
- Volker Richert
- E21 - EARTH DRILLING MINING
Information Patent Application
Rotary drag bit including a central region having a plurality of cu...
- Publication number 20060162966
- Publication date Jul 27, 2006
- Volker Richert
- E21 - EARTH DRILLING MINING