John H. Clark

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Abderdeen, GB

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Patents Grantslast 30 patents

Information Patent Grant
Alignment of downhole strings
- Patent number 9,200,487
- Issue date Dec 1, 2015
- Baker Hughes Incorporated
- Ian Draper
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wiper plug perforating system
- Patent number 8,127,846
- Issue date Mar 6, 2012
- Baker Hughes Incorporated
- Freeman L. Hill
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for a tubing conveyed perforating guns fire id...
- Patent number 6,955,217
- Issue date Oct 18, 2005
- Baker Hughes Incorporated
- John Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for a tubing conveyed perforating guns fire id...
- Patent number 6,564,866
- Issue date May 20, 2003
- Baker Hughes Incorporated
- John Clark
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ALIGNMENT OF DOWNHOLE STRINGS
- Publication number 20120145380
- Publication date Jun 14, 2012
- BAKER HUGHES INCORPORATED
- Ian Draper
- E21 - EARTH DRILLING MINING
Information Patent Application
Reservoir Pressure Monitoring
- Publication number 20120048539
- Publication date Mar 1, 2012
- BAKER HUGHES INCORPORATED
- John H. Clark
- E21 - EARTH DRILLING MINING
Information Patent Application
Wiper Plug Perforating System
- Publication number 20100096131
- Publication date Apr 22, 2010
- Baker Hub
- Freeman L. Hill
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and apparatus for a tubing conveyed perforating guns fire id...
- Publication number 20060054317
- Publication date Mar 16, 2006
- BAKER HUGHES INCORPORATED
- John Clark
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and apparatus for a tubing conveyed perforating guns fire id...
- Publication number 20040020645
- Publication date Feb 5, 2004
- BAKER HUGHES INCORPORATED
- John Clark
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and apparatus for a tubing conveyed perforating guns fire id...
- Publication number 20020079098
- Publication date Jun 27, 2002
- John Clark
- E21 - EARTH DRILLING MINING