Assignee
STEWART & STEVENSON SERV INC
US·22 granted patents·1 pending application·1,285 citations·filing 1979–2005
Top patents by PatentIndex Score
23 records- 0198US4955195AFluid control circuit and method of operating pressure responsive equipmentSTEWART & STEVENSON SERV INC·Filed 1988·Granted Sep 11, 1990·121 cites·18 claims
- 0289US5775803AAutomatic cementing system with improved density controlSTEWART & STEVENSON SERV INC·Filed 1997·Granted Jul 7, 1998·118 cites·20 claims
- 0387US5441340AMethod for controlling the density of a well fracturing slurrySTEWART & STEVENSON SERV INC·Filed 1994·Granted Aug 15, 1995·102 cites·15 claims
- 0486US6450262B1Riser isolation toolSTEWART & STEVENSON SERV INC·Filed 2000·Granted Sep 17, 2002·90 cites·10 claims
- 0586US5281023AMethod and apparatus for automatically controlling a well fracturing operationSTEWART & STEVENSON SERV INC·Filed 1989·Granted Jan 25, 1994·72 cites·25 claims
- 0683US5188174AApparatus for inserting and withdrawing coil tubing into a wellSTEWART & STEVENSON SERV INC·Filed 1991·Granted Feb 23, 1993·89 cites·34 claims
- 0783US4254752AMethod of and apparatus for improving operation of a diesel engine at light loadsSTEWART & STEVENSON SERV INC·Filed 1979·Granted Mar 10, 1981·45 cites·6 claims
- 0881US5624182AAutomatic cementing system with improved density controlSTEWART & STEVENSON SERV INC·Filed 1995·Granted Apr 29, 1997·105 cites·20 claims
- 0981US5184064AEncapsulated meter with optical programmerSTEWART & STEVENSON SERV INC·Filed 1991·Granted Feb 2, 1993·44 cites·23 claims
- 1080US5083423AApparatus and method for optimizing the air inlet temperature of gas turbinesSTEWART & STEVENSON SERV INC·Filed 1990·Granted Jan 28, 1992·67 cites·8 claims
- 1177US4951460AApparatus and method for optimizing the air inlet temperature of gas turbinesSTEWART & STEVENSON SERV INC·Filed 1989·Granted Aug 28, 1990·35 cites·15 claims
- 1274US5515916ABlowout preventerSTEWART & STEVENSON SERV INC·Filed 1995·Granted May 14, 1996·109 cites·16 claims
- 1374US5168815ARailroad car moving vehicleSTEWART & STEVENSON SERV INC·Filed 1991·Granted Dec 8, 1992·43 cites·20 claims
- 1470US6089526ARam type blowout preventorSTEWART & STEVENSON SERV INC·Filed 1998·Granted Jul 18, 2000·61 cites·25 claims
- 1570US4864914ABlowout preventer booster and methodSTEWART & STEVENSON SERV INC·Filed 1988·Granted Sep 12, 1989·41 cites·7 claims
- 1665US5503473AAutomatic cementing system for precisely obtaining a desired cement densitySTEWART & STEVENSON SERV INC·Filed 1994·Granted Apr 2, 1996·36 cites·17 claims
- 1765US4376443AJet water cleaning apparatusSTEWART & STEVENSON SERV INC·Filed 1981·Granted Mar 15, 1983·28 cites·10 claims
- 1855US5322410ATube bundle extractorSTEWART & STEVENSON SERV INC·Filed 1992·Granted Jun 21, 1994·16 cites·52 claims
- 1949US4878556AVehicle steering systemsSTEWART & STEVENSON SERV INC·Filed 1987·Granted Nov 7, 1989·12 cites·21 claims
- 2044US6123151AValve for use in a subsea drilling riserSTEWART & STEVENSON SERV INC·Filed 1998·Granted Sep 26, 2000·23 cites·13 claims
- 2141US5841357ABattery electrolyte monitorSTEWART & STEVENSON SERV INC·Filed 1996·Granted Nov 24, 1998·22 cites·1 claims
- 2241US2005254928A1Methods and apparatuses for movement of cargoSTEWART & STEVENSON SERV INC·Filed 2005·Application pending·0 cites
- 2318US6014855ALight hydrocarbon fuel cooling system for gas turbineSTEWART & STEVENSON SERV INC·Filed 1997·Granted Jan 18, 2000·6 cites·17 claims
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