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on 24 Apr 2020
LANDMARK GRAPHICS CORPORATION
74683079 · 01 Jun 1995
009
computer software used for exploration, development, and/or production...
on 20 Mar 2020
HALLIBURTON ENERGY SERVICES, INC.
73448901 · 20 Oct 1983
001
DRILLFOAM,Foaming Agent Used in Water, Oil and Gas Well Drilling Opera...
on 20 Mar 2020
HALLIBURTON ENERGY SERVICES, INC.
73503178 · 10 Oct 1984
007
009
...
Instruments for Oil and Gas Wells-Namely, Survey Instruments, and Elec...
on 16 Mar 2020
NATIONAL OILWELL VARCO, L.P.
71697073 · 25 Oct 1955
013
SAFEMATIC,AUTOMATIC SHUT-OFF VALVES,SAFEMATIC,AUTOMATIC SHUT-OFF VALVE...
on 11 Mar 2016
HALLIBURTON ENERGY SERVICES, INC.
72404422 · 06 Oct 1971
100
ACID TREATING OF UNDERGROUND RESERVOIRS,MIGHTY-ACID,ACID TREATING OF U...
on 11 Mar 2016
HALLIBURTON ENERGY SERVICES, INC
73229167 · 27 Aug 1979
040
Treatment of an Earthen Formation to Alter Its Fluid Conductivity,Trea...
on 26 Feb 2016
Halliburton Energy Services, Inc.
78420800 · 18 May 2004
009
Computer software for use in cementing operations, namely, used for re...
on 02 Oct 2015
Halliburton Energy Services, Inc.
78419626 · 17 May 2004
007
Downhole tool used in the drilling of oil and gas wells, namely, compr...
on 22 May 2015
HALLIBURTON ENERGY SERVICERS, INC.
73352209 · 01 Mar 1982
042
Directional and Pressure Surveying in Boreholes,Directional and Pressu...
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Owners
HallIburton Energy Services Inc. (116)
Landmark GraphIcs Corporation (26)
Enventure Global Technology LLC (6)
Abakos DIgital Images Pty LTD (1)
Ashcroft Inc. (1)
BaroId Technology Inc. (1)
Dresserrand Company (1)
HallIburton Energy Services Inc. (1)
HallIburton Enegy Services Inc. (1)
HallIburton Energy Servicers Inc. (1)
Categories
Class 9 (34)
Class 42 (32)
Class 7 (27)
Class 1 (17)
Class 37 (17)
Class 40 (15)
Class 6 (9)
Class 41 (7)
Class 35 (6)
Class 19 (4)
Class 13 (2)
Class 16 (2)
Class 12 (1)
Class 17 (1)
Class 38 (1)
Class 100 (1)
Correspondents
Carolyn S Waldo (94)
HallIburton Energy Services Inc. (59)
John SymIngton (2)
Dresser EquIpment Group Inc. (1)
FIsh Richardson Pc (1)
Jeffrey J Look (1)
Konneker SmIth Pc (1)
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