| Patent |
Priority |
Assignee |
Title |
| 1736486, |
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| 2040889, |
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| 2160228, |
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| 2223602, |
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| 2230447, |
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| 2286126, |
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| 2331532, |
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| 2376605, |
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| 2555627, |
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| 2589506, |
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| 2593520, |
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| 2616502, |
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| 2640546, |
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| 2713910, |
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| 2714932, |
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| 2737242, |
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| 2756827, |
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| 2830666, |
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| 2833354, |
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| 3013612, |
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| 3054453, |
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| 3062296, |
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| 3082824, |
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| 3160209, |
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| 3163225, |
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| 3273588, |
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| 3282342, |
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| 3291218, |
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| 3298437, |
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| 3298440, |
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| 3306362, |
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| 3308895, |
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| 3356140, |
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| 3393743, |
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| 3429375, |
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| 3507327, |
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| 3517742, |
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| 3554280, |
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| 3602305, |
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| 3623551, |
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| 3687202, |
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| 3787101, |
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| 3818987, |
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| 3851706, |
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| 3860066, |
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| 3926253, |
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| 4035024, |
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Hard rock trench cutting machine |
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Jan 09 1973 |
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Check valve assembly |
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Jun 14 1977 |
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Oilwell tubing tester with trapped valve seal |
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Dec 12 1977 |
Halliburton Company |
EZ disposal packer |
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Sep 05 1978 |
Halliburton Company |
Casing bridge plug with push-out pressure equalizer valve |
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Jul 23 1977 |
Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H. |
Mining machine with cutter drums and sensing apparatus |
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Apr 18 1977 |
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Jun 12 1980 |
RICHARDSON, CHARLES |
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Nov 21 1980 |
ROBBINS COMPANY, THE |
Raise bit with cutters stepped in a spiral and flywheel |
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Nov 27 1981 |
Dresser Industries, Inc. |
Quick release downhole motor coupling |
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Oct 02 1981 |
Baker International Corporation |
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Apparatus for releasably bridging a well |
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Jun 07 1982 |
Baker Oil Tools, Inc. |
Apparatus for well cementing through a tubular member |
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Jun 03 1981 |
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May 17 1982 |
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Mar 24 1983 |
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Aug 17 1983 |
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Dec 06 1983 |
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Oct 19 1983 |
Compagnie Francaise des Petroles |
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Aug 29 1984 |
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Mar 15 1983 |
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Sep 04 1985 |
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Jul 25 1986 |
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Jan 28 1987 |
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May 17 1984 |
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Apr 12 1988 |
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Jun 08 1988 |
Tam International |
Multiple-set downhole tool and method |
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Dec 01 1988 |
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Jun 02 1989 |
VERMEER MANUFACTURING COMPANY, A CORP OF IA |
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Jul 25 1990 |
Halliburton Company |
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Feb 15 1991 |
HALLIBURTON COMPANY, A DE CORP |
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May 02 1990 |
SASSY OLIVE HOLDINGS, LLC |
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Aug 31 1989 |
UNION OIL COMPANY OF CALIFORNIA, DBA UNOCAL, A CORP OF CA |
Well casing flotation device and method |
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May 22 1990 |
BAKER HUGHES INCORPORATED, A CORP OF DE |
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Jun 04 1991 |
Coors Technical Ceramics Company |
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Jul 13 1990 |
Halliburton Company |
System containing expendible isolation valve with frangible sealing member, seat arrangement and method for use |
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Aug 12 1991 |
Halliburton Company |
Apparatus and method of anchoring and releasing from a packer |
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Sep 13 1990 |
Halliburton Energy Services, Inc |
Corebarrel |
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Mar 27 1992 |
Vermeer Manufacturing Company |
Trenching apparatus |
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Jun 21 1991 |
Halliburton Energy Services, Inc |
Downhole tool apparatus with non-metallic components and methods of drilling thereof |
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Mar 06 1992 |
Baker Hughes Incorporated; BAKER HUGHES INCORPORATED A CORPORATION OF DE |
Self-contained closure mechanism for a core barrel inner tube assembly |
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May 01 1992 |
Davis-Lynch, Inc. |
Cementing apparatus |
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Apr 09 1992 |
Halliburton Company |
Hostile environment packer system |
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Jun 10 1992 |
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Rock saw |
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Jul 16 1992 |
Camco International Inc. |
Multiple use well packer |
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Mar 08 1993 |
Baski Water Instruments |
Flow and pressure control packer valve |
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Apr 03 1992 |
TIW Corporation |
Hydraulically actuated liner hanger arrangement and method |
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Nov 03 1992 |
Halliburton Company |
Apparatus and method of anchoring and releasing from a packer |
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Apr 26 1990 |
Halliburton Energy Services, Inc |
Downhole tool with sliding valve |
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Jun 10 1993 |
Vermeer Manufacturing Company |
Mounting apparatus for a bridge of a trenching machine |
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Oct 08 1993 |
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Slickline setting tool and bailer bottom for plugback operations |
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May 05 1994 |
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Hydraulic disconnect |
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Sep 02 1993 |
The Sollami Company |
Insert for tungsten carbide tool |
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Trenching system for earth surface use, as on paved streets, roads, highways and the like |
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May 16 1995 |
Halliburton Energy Services, Inc |
Downhole tool apparatus with non-metallic packer element retaining shoes |
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Jul 12 1994 |
Halliburton Company |
Well completion system with flapper control valve |
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May 04 1994 |
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Valve cage for a rod drawn positive displacement pump |
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Dec 20 1994 |
Smith International, Inc. |
Self-centering polycrystalline diamond cutting rock bit |
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Mar 29 1996 |
Halliburton Energy Services, Inc |
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Oct 03 1996 |
ATLAS COPCO BHMT INC |
Earth-boring bit having cutter with replaceable kerf ring with contoured inserts |
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Oct 04 1996 |
Battelle Energy Alliance, LLC |
Device and method for producing a containment barrier underneath and around in-situ buried waste |
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Jul 29 1996 |
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Liner wiper plug apparatus and method |
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Nov 25 1996 |
Halliburton Company |
Retrievable annular safety valve system |
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Shielded cutterhead with small rolling disc cutters |
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Halliburton Energy Services, Inc |
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Halliburton Energy Services, Inc. |
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Feb 09 1998 |
ERC Industries, Inc. |
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Device for excavating an elongated depression in soil |
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Schlumberger Technology Corporation |
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Baker Hughes Incorporated |
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ELLISON EDUCATIONAL EQUIPMENT, INC |
Blade holder for an electronic media cutter |
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May 11 2010 |
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Piercing cap drive socket |
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Sep 18 2009 |
Guhring OHG |
Fastenings, supports or assemblies |
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Jul 29 2011 |
Nine Downhole Technologies, LLC |
Configurable insert for a downhole tool |
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Jul 29 2011 |
Nine Downhole Technologies, LLC |
Configurable bridge plug insert for a downhole tool |
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Jul 23 1993 |
ASTEC INDUSTRIES, INC |
Trenching machine with laterally adjustable chain-type digging implement |
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