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Lindsey Completion Systems, Inc.
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Midland, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Finger nut setting tool and liner hanger assembly
Patent number
5,074,362
Issue date
Dec 24, 1991
Lindsey Completion Systems, Inc.
Roger P. Allwin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Landing collar and float valve assembly
Patent number
5,058,672
Issue date
Oct 22, 1991
Lindsey Completion Systems, Inc.
Chudleigh B. Cochran
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pipe insert assembly
Patent number
5,058,671
Issue date
Oct 22, 1991
Lindsey Completion Systems, Inc.
Chudleigh B. Cochran
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure operated circulation valve
Patent number
5,048,611
Issue date
Sep 17, 1991
Lindsey Completion Systems, Inc.
Chudleigh B. Cochran
E21 - EARTH DRILLING MINING
Information
Patent Grant
Setting tool for a liner hanger assembly
Patent number
5,048,606
Issue date
Sep 17, 1991
Lindsey Completion Systems, Inc.
Roger P. Allwin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Double nut setting tool and linger hanger assembly
Patent number
5,048,612
Issue date
Sep 17, 1991
Lindsey Completion Systems, Inc.
Chudleigh B. Cochran
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotatable liner hanger with multiple bearings and cones
Patent number
4,926,938
Issue date
May 22, 1990
Lindsey Completion Systems, Inc.
Hiram E. Lindsey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Liner and drill pipe assembly
Patent number
4,898,243
Issue date
Feb 6, 1990
Lindsey Completion Systems, Inc.
Hiram E. Lindsey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Stage cementing valve
Patent number
4,880,058
Issue date
Nov 14, 1989
Lindsey Completion Systems, Inc.
Hiram E. Lindsey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Liner hanger with collapsible ball valve seat
Patent number
4,862,966
Issue date
Sep 5, 1989
Lindsey Completion Systems, Inc.
Hiram E. Lindsey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotatable liner hanger
Patent number
4,848,462
Issue date
Jul 18, 1989
Lindsey Completion Systems, Inc.
Roger P. Allwin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Liner hanger with retrievable ball valve seat
Patent number
4,828,037
Issue date
May 9, 1989
Lindsey Completion Systems, Inc.
Hiram E. Lindsey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Liner hanger assembly with combination setting tool
Patent number
4,712,614
Issue date
Dec 15, 1987
Lindsey Completion Systems
Roger P. Allwin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Liner hanger assembly with setting tool
Patent number
4,712,615
Issue date
Dec 15, 1987
Lindsey Completion Systems
Roy R. Dockins
E21 - EARTH DRILLING MINING
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