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George James Michaud
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Calgary, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Pressure containment device
Patent number
10,711,558
Issue date
Jul 14, 2020
Managed Pressure Operations PTE Ltd.
Christian Leuchtenberg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure containment devices
Patent number
10,316,607
Issue date
Jun 11, 2019
Managed Pressure Operations PTE Ltd.
Christian Leuchtenberg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure containment device
Patent number
10,036,227
Issue date
Jul 31, 2018
Managed Pressure Operations PTE Ltd.
Christian Leuchtenberg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus and method for controlled pressure drilling
Patent number
9,856,713
Issue date
Jan 2, 2018
Smith International Inc.
Zaurayze Tarique
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cable bypass and method for controlled entry of a tubing string and...
Patent number
9,458,677
Issue date
Oct 4, 2016
Schlumberger Technology Corporation
John David Struthers
E21 - EARTH DRILLING MINING
Information
Patent Grant
Universal rotating flow head having a modular lubricated bearing pack
Patent number
9,284,811
Issue date
Mar 15, 2016
Schlumberger Technology Corporation
George James Michaud
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cable bypass and method for controlled entry of a tubing string and...
Patent number
8,573,294
Issue date
Nov 5, 2013
Schlumberger Technology Corporation
John David Struthers
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
PRESSURE CONTAINMENT DEVICE
Publication number
20180334877
Publication date
Nov 22, 2018
Managed Pressure Operations PTE LTD
Christian LEUCHTENBERG
E21 - EARTH DRILLING MINING
Information
Patent Application
PRESSURE CONTAINMENT DEVICES
Publication number
20170370171
Publication date
Dec 28, 2017
Managed Pressure Operations PTE LTD
CHRISTIAN LEUCHTENBERG
E21 - EARTH DRILLING MINING
Information
Patent Application
PRESSURE CONTAINMENT DEVICE
Publication number
20150144400
Publication date
May 28, 2015
Managed Pressure Operations PTE LTD
Christian LEUCHTENBERG
E21 - EARTH DRILLING MINING
Information
Patent Application
CABLE BYPASS AND METHOD FOR CONTROLLED ENTRY OF A TUBING STRING AND...
Publication number
20130292139
Publication date
Nov 7, 2013
Schlumberger Technology Corporation
John David Struthers
E21 - EARTH DRILLING MINING
Information
Patent Application
UNIVERSAL ROTATING FLOW HEAD HAVING A MODULAR LUBRICATED BEARING PACK
Publication number
20120217022
Publication date
Aug 30, 2012
George James Michaud
E21 - EARTH DRILLING MINING
Information
Patent Application
APPARATUS AND METHOD FOR CONTROLLED PRESSURE DRILLING
Publication number
20120085545
Publication date
Apr 12, 2012
Zaurayze Tarique
E21 - EARTH DRILLING MINING
Information
Patent Application
CABLE BYPASS AND METHOD FOR CONTROLLED ENTRY OF A TUBING STRING AND...
Publication number
20110174501
Publication date
Jul 21, 2011
Schlumberger Technology Corporation
John David Struthers
E21 - EARTH DRILLING MINING