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Gregory H. Chitty
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Houston, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
System for evaluating over and underbalanced drilling operations
Patent number
7,813,935
Issue date
Oct 12, 2010
Weatherford/Lamb, Inc.
Greg Chitty
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Closed loop multiphase underbalanced drilling process
Patent number
7,654,319
Issue date
Feb 2, 2010
Weatherford/Lamb, Inc.
Gregory H. Chitty
E21 - EARTH DRILLING MINING
Information
Patent Grant
Closed loop multiphase underbalanced drilling process
Patent number
7,178,592
Issue date
Feb 20, 2007
Weatherford/Lamb, Inc.
Gregory H. Chitty
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and apparatus for drilling with a multiphase pump
Patent number
7,066,247
Issue date
Jun 27, 2006
Weatherford/Lamb, Inc.
Bryan V. Butler
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and apparatus for drilling with a multiphase pump
Patent number
6,966,367
Issue date
Nov 22, 2005
Weatherford/Lamb, Inc.
Bryan V. Butler
E21 - EARTH DRILLING MINING
Information
Patent Grant
Non-cryogenic production of nitrogen for on-site injection in well...
Patent number
6,929,068
Issue date
Aug 16, 2005
Weatherford/Lamb, Inc.
Gregory H. Chitty
E21 - EARTH DRILLING MINING
Information
Patent Grant
Non-cryogenic production of nitrogen for on-site injection in well...
Patent number
6,494,262
Issue date
Dec 17, 2002
Weatherford/Lamb, Inc.
Gregory H. Chitty
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
CLOSED LOOP MULTIPHASE UNDERBALANCED DRILLING PROCESS
Publication number
20080121392
Publication date
May 29, 2008
Gregory H. Chitty
E21 - EARTH DRILLING MINING
Information
Patent Application
CLOSED LOOP MULTIPHASE UNDERBALANCED DRILLING PROCESS
Publication number
20070199714
Publication date
Aug 30, 2007
Gregory H. Chitty
E21 - EARTH DRILLING MINING
Information
Patent Application
Methods and apparatus for drilling with a multiphase pump
Publication number
20060005999
Publication date
Jan 12, 2006
Bryan V. Butler
E21 - EARTH DRILLING MINING
Information
Patent Application
System for evaluating over and underbalanced drilling operations
Publication number
20050192855
Publication date
Sep 1, 2005
Greg Chitty
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Methods and apparatus for drilling with a multiphase pump
Publication number
20040031622
Publication date
Feb 19, 2004
Bryan V. Butler
E21 - EARTH DRILLING MINING
Information
Patent Application
Closed loop multiphase underbalanced drilling process
Publication number
20040007131
Publication date
Jan 15, 2004
Gregory H. Chitty
E21 - EARTH DRILLING MINING
Information
Patent Application
Combination well kick off and gas lift booster unit
Publication number
20030085036
Publication date
May 8, 2003
Glen A. Curtis
E21 - EARTH DRILLING MINING
Information
Patent Application
Non-cryogenic production of nitrogen for on-site injection in well...
Publication number
20030075320
Publication date
Apr 24, 2003
Weatherford/Lamb, Inc.
Gregory H. Chitty
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL