Assignee
TEXAS IRON WORKS
US·24 granted patents·1,159 citations·filing 1975–1990
Top patents by PatentIndex Score
24 records- 0193US4391325ALiner and hydraulic liner hanger setting arrangementTEXAS IRON WORKS·Filed 1980·Granted Jul 5, 1983·132 cites·10 claims
- 0292US3999605AWell tool for setting and supporting linersTEXAS IRON WORKS·Filed 1976·Granted Dec 28, 1976·83 cites·5 claims
- 0389US4854383AManifold arrangement for use with a top drive power unitTEXAS IRON WORKS·Filed 1988·Granted Aug 8, 1989·134 cites·2 claims
- 0488US4722389AWell bore servicing arrangementTEXAS IRON WORKS·Filed 1986·Granted Feb 2, 1988·104 cites·2 claims
- 0587US4854386AMethod and apparatus for stage cementing a liner in a well bore having a casingTEXAS IRON WORKS·Filed 1988·Granted Aug 8, 1989·83 cites·47 claims
- 0685US4898245ARetrievable well bore tubular member packer arrangement and methodTEXAS IRON WORKS·Filed 1989·Granted Feb 6, 1990·74 cites·36 claims
- 0782US4281711AApparatus for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetweenTEXAS IRON WORKS·Filed 1975·Granted Aug 4, 1981·49 cites·25 claims
- 0879US4690220ATubular member anchoring arrangement and methodTEXAS IRON WORKS·Filed 1985·Granted Sep 1, 1987·58 cites·18 claims
- 0972US4688642ARotatable liner with multiple simultaneously set liner hanger arrangement and methodTEXAS IRON WORKS·Filed 1986·Granted Aug 25, 1987·47 cites·36 claims
- 1070US4926936AMultiple purpose liner hanger constructionTEXAS IRON WORKS·Filed 1989·Granted May 22, 1990·39 cites·29 claims
- 1167US5020597AArrangement and method for conducting substance and lock thereforTEXAS IRON WORKS·Filed 1990·Granted Jun 4, 1991·45 cites·93 claims
- 1262US4993493ARetrievable landing method and assembly for a well boreTEXAS IRON WORKS·Filed 1987·Granted Feb 19, 1991·34 cites·45 claims
- 1361US4966236ACementing method and arrangementTEXAS IRON WORKS·Filed 1989·Granted Oct 30, 1990·29 cites·91 claims
- 1460US4834185AMethod and apparatus for manipulating a well bore linerTEXAS IRON WORKS·Filed 1988·Granted May 30, 1989·30 cites·13 claims
- 1560US4646842ARetrievable well bore assemblyTEXAS IRON WORKS·Filed 1984·Granted Mar 3, 1987·29 cites·22 claims
- 1659US5018579AArrangement and method for conducting substance and seal thereforTEXAS IRON WORKS·Filed 1990·Granted May 28, 1991·35 cites·91 claims
- 1759US4293163AValve for closing the fluid passage of a well bore tubular member with balanced operating arrangementTEXAS IRON WORKS·Filed 1977·Granted Oct 6, 1981·21 cites·3 claims
- 1857US3993128AWell tool for setting and supporting linersTEXAS IRON WORKS·Filed 1976·Granted Nov 23, 1976·19 cites·6 claims
- 1955US4248300AMethod of and apparatus for positioning retrievable landing nipple in a well bore stringTEXAS IRON WORKS·Filed 1978·Granted Feb 3, 1981·17 cites·20 claims
- 2054US5036922ASingle plug arrangement, lock therefor and method of useTEXAS IRON WORKS·Filed 1990·Granted Aug 6, 1991·26 cites·38 claims
- 2150US4776395AWell bore treating fluid toolTEXAS IRON WORKS·Filed 1987·Granted Oct 11, 1988·21 cites·7 claims
- 2249US4972908APacker arrangementTEXAS IRON WORKS·Filed 1989·Granted Nov 27, 1990·18 cites·23 claims
- 2347US4106565ASeal nipple packerTEXAS IRON WORKS·Filed 1977·Granted Aug 15, 1978·13 cites·4 claims
- 2444US5018582AHydraulic running and release tool with mechanical emergency releaseTEXAS IRON WORKS·Filed 1990·Granted May 28, 1991·19 cites·12 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →