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Barry J. Tate
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Calgary, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Manipulator tool and tool catcher useful with wellbore reverse circ...
Patent number
8,881,835
Issue date
Nov 11, 2014
Schlumberger Technology Corporation
Robert M. Tessari
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tools and methods useful with wellbore reverse circulation
Patent number
8,443,906
Issue date
May 21, 2013
Schlumberger Technology Corporation
Robert M. Tessari
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for drilling with a wellbore liner
Patent number
7,647,990
Issue date
Jan 19, 2010
Tesco Corporation
Robert M. Tessari
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
TOOLS AND METHODS USEFUL WITH WELLBORE REVERSE CIRCULATION
Publication number
20150060046
Publication date
Mar 5, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Robert M. Tessari
E21 - EARTH DRILLING MINING
Information
Patent Application
MANIPULATOR TOOL AND TOOL CATCHER USEFUL WITH WELLBORE REVERSE CIRC...
Publication number
20130248204
Publication date
Sep 26, 2013
SCHLUMBERGER TECHNOLOGY CORPORATION
Robert M. Tessari
E21 - EARTH DRILLING MINING
Information
Patent Application
Tools and Methods Useful with Wellbore Reverse Circulation
Publication number
20100206580
Publication date
Aug 19, 2010
TESCO CORPORATION
Robert M. Tessari
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR DRILLING WITH A WELLBORE LINER
Publication number
20070175665
Publication date
Aug 2, 2007
TESCO CORPORATION
Robert M. Tessari
E21 - EARTH DRILLING MINING