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HOUSTON ENGINEERS, INC.
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HOUSTON, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Jar enhancer
Patent number
5,918,689
Issue date
Jul 6, 1999
Houston Engineers, Inc.
Bill J. Roberts
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tool for use in retrieving an essentially cylindrical object from a...
Patent number
5,765,638
Issue date
Jun 16, 1998
Houston Engineers, Inc.
Robert Bonner Taylor
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic jar with improved detent ring
Patent number
5,595,253
Issue date
Jan 21, 1997
Houston Engineers, Inc.
Glenn J. Martin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic jar
Patent number
5,595,244
Issue date
Jan 21, 1997
Houston Engineers, Inc.
Billy J. Roberts
E21 - EARTH DRILLING MINING
Information
Patent Grant
Jar enhancer
Patent number
5,431,221
Issue date
Jul 11, 1995
Houston Engineers, Inc.
Billy J. Roberts
E21 - EARTH DRILLING MINING
Information
Patent Grant
Jar enhancer
Patent number
5,425,430
Issue date
Jun 20, 1995
Houston Engineers, Inc.
Billy J. Roberts
E21 - EARTH DRILLING MINING
Information
Patent Grant
Constant velocity universal joint assembly for downhole motor
Patent number
5,288,271
Issue date
Feb 22, 1994
Houston Engineers, Inc.
Sharon P. Nelson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic jar
Patent number
5,174,393
Issue date
Dec 29, 1992
Houston Engineers, Inc.
Billy J. Roberts
E21 - EARTH DRILLING MINING
Information
Patent Grant
Overshot tool
Patent number
4,023,847
Issue date
May 17, 1977
Houston Engineers, Inc.
Derrel D. Webb
E21 - EARTH DRILLING MINING
Information
Patent Grant
Riser assembly
Patent number
3,955,621
Issue date
May 11, 1976
Houston Engineers, Inc.
Derrel D. Webb
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75372353 - HYDRA-THRUST
Serial number
75372353
Registration number
2227708
Filing date
Oct 14, 1997
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
75284252 - TT
Serial number
75284252
Registration number
2248616
Filing date
Apr 30, 1997
HOUSTON ENGINEERS, INC.
6 - Common metals and their alloys
Information
Trademark
75227696 - MAGNUM
Serial number
75227696
Registration number
2185428
Filing date
Jan 17, 1997
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
75139877 - EFL
Serial number
75139877
Registration number
2077492
Filing date
Jul 25, 1996
HOUSTON ENGINEERS, INC.
6 - Common metals and their alloys
Information
Trademark
75036244 - HYDRA-STROKE
Serial number
75036244
Registration number
2064106
Filing date
Dec 15, 1995
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
74691928 - HYDRA-GUIDE
Serial number
74691928
Registration number
1984001
Filing date
Jun 22, 1995
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
74616465 - HYDRA-SHOCK
Serial number
74616465
Registration number
1937309
Filing date
Dec 29, 1994
HOUSTON ENGINEERS, INC.
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
74424438 - HYDRA-DRILL
Serial number
74424438
Registration number
1880379
Filing date
Aug 16, 1993
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
74233227 - MAGNUM
Serial number
74233227
Filing date
Dec 23, 1991
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
74118748 - HYDRA-JAR
Serial number
74118748
Registration number
1663184
Filing date
Nov 28, 1990
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
73650414 - HE
Serial number
73650414
Registration number
1489031
Filing date
Mar 20, 1987
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
73140083 - HYDRA JAR
Serial number
73140083
Registration number
1105483
Filing date
Sep 6, 1977
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
72242011 - ACCELERATOR
Serial number
72242011
Registration number
825695
Filing date
Mar 28, 1966
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools
Information
Trademark
71541420 - HE
Serial number
71541420
Registration number
508001
Filing date
Nov 17, 1947
HOUSTON ENGINEERS, INC.
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
71541421 - HE
Serial number
71541421
Registration number
521135
Filing date
Nov 17, 1947
HOUSTON ENGINEERS, INC.
7 - Machines and machine tools