David John Hillis

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Balmedie, GB

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Patents Grantslast 30 patents

Information Patent Grant
Collapse resistance of tubing
- Patent number 7,575,060
- Issue date Aug 18, 2009
- Weatherford/Lamb, Inc.
- David John Hillis
- C21 - METALLURGY OF IRON
Information Patent Grant
Methods and apparatus for expanding tubing with an expansion tool a...
- Patent number 7,395,857
- Issue date Jul 8, 2008
- Weatherford/Lamb, Inc.
- David John Hillis
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tubing expansion
- Patent number 7,367,389
- Issue date May 6, 2008
- Weatherford/Lamb, Inc.
- Andrew Michael Duggan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Expander tool for use in a wellbore
- Patent number 7,308,944
- Issue date Dec 18, 2007
- Weatherford/Lamb, Inc.
- Gary Johnston
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tubing expansion
- Patent number 7,255,177
- Issue date Aug 14, 2007
- Weatherford/Lamb, Inc.
- Andrew Michael Duggan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods and apparatus for expanding tubulars
- Patent number 7,017,669
- Issue date Mar 28, 2006
- Weatherford/Lamb, Inc.
- Gary Johnston
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Axial compression enhanced tubular expansion
- Publication number 20070000664
- Publication date Jan 4, 2007
- Weatherford/Lamb, Inc.
- Lev Ring
- E21 - EARTH DRILLING MINING
Information Patent Application
Tubing expansion
- Publication number 20060052936
- Publication date Mar 9, 2006
- Andrew Michael Duggan
- E21 - EARTH DRILLING MINING
Information Patent Application
Tubing expansion
- Publication number 20050161226
- Publication date Jul 28, 2005
- Andrew Michael Duggan
- E21 - EARTH DRILLING MINING
Information Patent Application
Expander tool for use in a wellbore
- Publication number 20050072569
- Publication date Apr 7, 2005
- Gary Johnston
- E21 - EARTH DRILLING MINING
Information Patent Application
Expanding tubing
- Publication number 20050023001
- Publication date Feb 3, 2005
- David John Hillis
- E21 - EARTH DRILLING MINING
Information Patent Application
Collapse resistance of tubing
- Publication number 20040055756
- Publication date Mar 25, 2004
- David John Hillis
- C21 - METALLURGY OF IRON
Information Patent Application
Methods and apparatus for expanding tubulars
- Publication number 20030205386
- Publication date Nov 6, 2003
- Gary Johnston
- E21 - EARTH DRILLING MINING