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Lamar L. Gantt
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Anchorage, AK, US
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Patents Grants
last 30 patents
Information
Patent Grant
Permanent bypass whipstock assembly for drilling and completing a s...
Patent number
10,161,227
Issue date
Dec 25, 2018
ConocoPhillips Company
David G. Hearn
E21 - EARTH DRILLING MINING
Information
Patent Grant
Permanent bypass whipstock assembly for drilling and completing a s...
Patent number
9,371,694
Issue date
Jun 21, 2016
ConocoPhillips Company
David D. Hearn
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mill-through tailpipe liner exit and method of use thereof
Patent number
8,256,535
Issue date
Sep 4, 2012
ConocoPhillips Company
David D. Hearn
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mill starting device and method
Patent number
5,725,060
Issue date
Mar 10, 1998
Atlantic Richfield Company
Curtis G. Blount
E21 - EARTH DRILLING MINING
Information
Patent Grant
Squeeze cementing method for wells
Patent number
5,332,037
Issue date
Jul 26, 1994
Atlantic Richfield Company
Joseph H. Schmidt
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
Permanent Bypass Whipstock Assembly For Drilling and Completing a S...
Publication number
20160305221
Publication date
Oct 20, 2016
ConocoPhillips Company
David G. HEARN
E21 - EARTH DRILLING MINING
Information
Patent Application
Permanent Bypass Whipstock Assembly For Drilling and Completing a S...
Publication number
20100307736
Publication date
Dec 9, 2010
ConocoPhillips Company
David D. Hearn
E21 - EARTH DRILLING MINING
Information
Patent Application
Mill-Through Tailpipe Liner Exit
Publication number
20100147592
Publication date
Jun 17, 2010
ConocoPhillips Company
David D. Hearn
E21 - EARTH DRILLING MINING