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DRILEX SYSTEMS, INC
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HOUSTON, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Down-hole motor universal joint
Patent number
5,704,838
Issue date
Jan 6, 1998
Drilex Systems, Inc.
David W. Teale
E21 - EARTH DRILLING MINING
Information
Patent Grant
Navigable downhole drilling system
Patent number
5,269,383
Issue date
Dec 14, 1993
Drilex Systems, Inc.
John Forrest
E21 - EARTH DRILLING MINING
Information
Patent Grant
Power generation from a multi-lobed drilling motor
Patent number
5,248,896
Issue date
Sep 28, 1993
Drilex Systems, Inc.
John Forrest
E21 - EARTH DRILLING MINING
Information
Patent Grant
Composite stator construction for downhole drilling motors
Patent number
5,171,138
Issue date
Dec 15, 1992
Drilex Systems, Inc.
John Forrest
E21 - EARTH DRILLING MINING
Information
Patent Grant
Double bend positive positioning directional drilling system
Patent number
5,094,304
Issue date
Mar 10, 1992
Drilex Systems, Inc.
Gary M. Briggs
E21 - EARTH DRILLING MINING
Information
Patent Grant
Geothermal wellhead repair unit
Patent number
5,040,600
Issue date
Aug 20, 1991
Drilex Systems, Inc.
Thomas F. Bailey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Packer for wellhead repair unit
Patent number
5,009,265
Issue date
Apr 23, 1991
Drilex Systems, Inc.
Thomas F. Bailey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Geothermal wellhead repair unit
Patent number
4,984,636
Issue date
Jan 15, 1991
Drilex Systems, Inc.
Thomas F. Bailey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mud saver valve with replaceable inner sleeve
Patent number
4,962,819
Issue date
Oct 16, 1990
Drilex Systems, Inc.
Thomas F. Bailey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mud saver valve with increased flow check valve
Patent number
4,955,949
Issue date
Sep 11, 1990
Drilex Systems, Inc.
Thomas F. Bailey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Thermal shield for drilling motors
Patent number
4,926,949
Issue date
May 22, 1990
Drilex Systems, Inc.
John Forrest
E21 - EARTH DRILLING MINING
Information
Patent Grant
Detonation assembly for explosive wellhead severing system
Patent number
4,909,320
Issue date
Mar 20, 1990
Drilex Systems, Inc.
Joseph V. Hebert
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for controlled absorption of axial and torsional forces i...
Patent number
4,901,806
Issue date
Feb 20, 1990
Drilex Systems, Inc.
John Forrest
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling apparatus and cutter
Patent number
4,865,137
Issue date
Sep 12, 1989
Drilex Systems, Inc.
Thomas F. Bailey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Self-lubricating well tools and seal elements therefor
Patent number
4,793,424
Issue date
Dec 27, 1988
Drilex Systems, Inc.
Honorio Y. Lim
E21 - EARTH DRILLING MINING
Information
Patent Grant
Whipstock packer assembly
Patent number
4,765,404
Issue date
Aug 23, 1988
Drilex Systems, Inc.
Thomas F. Bailey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for setting an underwater drilling system
Patent number
4,759,413
Issue date
Jul 26, 1988
Drilex Systems, Inc.
Thomas F. Bailey
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling head with bayonet coupling
Patent number
4,754,820
Issue date
Jul 5, 1988
Drilex Systems, Inc.
James T. Watts
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75288342 - X-TREME
Serial number
75288342
Filing date
May 8, 1997
DRILEX SYSTEMS, INC.
7 - Machines and machine tools
Information
Trademark
73694685 - DRILEX
Serial number
73694685
Registration number
1523205
Filing date
Nov 9, 1987
DRILEX SYSTEMS, INC.
7 - Machines and machine tools