Pearl E. Stephenson

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus, assembly and process for injecting fluid into a subterra...
- Patent number 8,413,726
- Issue date Apr 9, 2013
- Marathon Oil Company
- Pearl E. Stephenson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus, assembly and process for injecting fluid into a subterra...
- Patent number 7,766,085
- Issue date Aug 3, 2010
- Marathon Oil Company
- Pearl E. Stephenson
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS, ASSEMBLY AND PROCESS FOR INJECTING FLUID INTO A SUBTERRA...
- Publication number 20110042097
- Publication date Feb 24, 2011
- MARATHON OIL COMPANY
- Pearl E. Stephenson
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS, ASSEMBLY AND PROCESS FOR INJECTING FLUID INTO A SUBTERRA...
- Publication number 20090194293
- Publication date Aug 6, 2009
- MARATHON OIL COMPANY
- Pearl E. Stephenson
- E21 - EARTH DRILLING MINING