Robert Norrell

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New Brighton, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 6,805,202
- Issue date Oct 19, 2004
- Weatherford/Lamb, Inc.
- George Gillespie
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
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- Publication number 20050044690
- Publication date Mar 3, 2005
- Weatherford/Lamb, Inc.
- George Gillespie
- E21 - EARTH DRILLING MINING
Information Patent Application
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- Publication number 20020117304
- Publication date Aug 29, 2002
- George Gillespie
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC