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Christopher S. Charles
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Houston, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Enhanced offset stabilization for eccentric reamers
Patent number
6,739,416
Issue date
May 25, 2004
Baker Hughes Incorporated
W. Gregory Presley
E21 - EARTH DRILLING MINING
Information
Patent Grant
Reaming apparatus and method with enhanced structural protection
Patent number
6,695,080
Issue date
Feb 24, 2004
Baker Hughes Incorporated
W. Gregory Presley
E21 - EARTH DRILLING MINING
Information
Patent Grant
Reaming apparatus and method with ability to drill out cement and f...
Patent number
6,397,958
Issue date
Jun 4, 2002
Baker Hughes Incorporated
Christopher S. Charles
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock bit nozzle arrangement
Patent number
6,098,728
Issue date
Aug 8, 2000
Baker Hughes Incorporated
Jennifer Ann Wells
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Enhanced offset stabilization for eccentric reamers
Publication number
20030173114
Publication date
Sep 18, 2003
W. Gregory Presley
E21 - EARTH DRILLING MINING
Information
Patent Application
Reaming apparatus and method with enhanced structural protection
Publication number
20020166703
Publication date
Nov 14, 2002
W. Gregory Presley
E21 - EARTH DRILLING MINING