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Jerry D. Campbell
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Katy, 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
Perforating guns with reduced internal volume
Patent number
8,127,654
Issue date
Mar 6, 2012
Schlumberger Technology Corporation
Harvey Williams
E21 - EARTH DRILLING MINING
Information
Patent Grant
Connector assembly and method of use
Patent number
7,661,474
Issue date
Feb 16, 2010
Schlumberger Technology Corporation
Jerry D. Campbell
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
Downhole anchoring tools conveyed by non-rigid carriers
Patent number
6,315,043
Issue date
Nov 13, 2001
Schlumberger Technology Corporation
Simon L. Farrant
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
DEVICE AND METHOD TO REDUCE BREAKDOWN/FRACTURE INITIATION PRESSURE
Publication number
20110024117
Publication date
Feb 3, 2011
SCHLUMBERGER TECHNOLOGY CORPORATION
Jorge E. Lopez De Cardenas
E21 - EARTH DRILLING MINING
Information
Patent Application
PERFORATING GUNS WITH REDUCED INTERNAL VOLUME
Publication number
20100319520
Publication date
Dec 23, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
Harvey Williams
E21 - EARTH DRILLING MINING
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
Weight Spacer Apparatus
Publication number
20080053298
Publication date
Mar 6, 2008
SCHLUMBERGER TECHNOLOGY CORPORATION
Chenghua Han
E21 - EARTH DRILLING MINING
Information
Patent Application
Connector Assembly and Method of Use
Publication number
20070034381
Publication date
Feb 15, 2007
SCHLUMBERGER TECHNOLOGY CORPORATION
Jerry D. Campbell
E21 - EARTH DRILLING MINING