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Cynthia L. Hickson
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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for orienting perforating devices
Patent number
8,439,114
Issue date
May 14, 2013
Schlumberger Technology Corporation
Robert A. Parrott
E21 - EARTH DRILLING MINING
Information
Patent Grant
Shaped charge loading tube for perforating gun
Patent number
7,159,657
Issue date
Jan 9, 2007
Schlumberger Technology Corporation
Wanchai Ratanasirigulchia
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for orienting perforating devices
Patent number
7,114,564
Issue date
Oct 3, 2006
Schlumberger Technology Corporation
Robert A. Parrott
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus to reduce trapped pressure in a downhole tool
Patent number
6,588,508
Issue date
Jul 8, 2003
Schlumberger Technology Corporation
Robert A. Parrott
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Method and Apparatus for Orienting Perforating Devices
Publication number
20080264639
Publication date
Oct 30, 2008
SCHLUMBERGER TECHNOLOGY CORPORATION
Robert A. Parrott
E21 - EARTH DRILLING MINING
Information
Patent Application
Shaped Charge Loading Tube for Perforating Gun
Publication number
20050211467
Publication date
Sep 29, 2005
SCHLUMBERGER TECHNOLOGY CORPORATION
Wanchai Ratanasirigulchia
E21 - EARTH DRILLING MINING
Information
Patent Application
Method and apparatus to reduce trapped pressure in a downhole tool
Publication number
20020033264
Publication date
Mar 21, 2002
Robert A. Parrott
E21 - EARTH DRILLING MINING