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Cecil G. McGavern
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Spring, TX, US
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last 30 patents
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Patent Grant
Method and apparatus for continuously injecting fluid in a wellbore...
Patent number
7,712,537
Issue date
May 11, 2010
BJ Services Company U.S.A.
Thomas G. Hill
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
Method and Apparatus for Continuously Injecting Fluid in a Wellbore...
Publication number
20080271893
Publication date
Nov 6, 2008
BJ SERVICES COMPANY, U.S.A
Thomas G. Hill
E21 - EARTH DRILLING MINING
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Patent Application
Laminate pressure containing body for a well tool
Publication number
20080035328
Publication date
Feb 14, 2008
Tejas Associates, Inc.
Thomas G. Hill
E21 - EARTH DRILLING MINING