Assignee
PETROLES CIE FRANCAISE
101 granted patents·2,262 citations·filing 1973–1986
Top patents by PatentIndex Score
101 records- 0191US3935910AMethod and apparatus for moulding protective tubing simultaneously with bore hole drillingPETROLES CIE FRANCAISE·Filed 1974·Granted Feb 3, 1976·259 cites·20 claims
- 0288US4352674AMethod of tracing a well drilling mudPETROLES CIE FRANCAISE·Filed 1981·Granted Oct 5, 1982·78 cites·7 claims
- 0388US4098333AMarine production riser systemPETROLES CIE FRANCAISE·Filed 1977·Granted Jul 4, 1978·75 cites·29 claims
- 0486US4068490AMethod and apparatus for assembling and laying underwater pipelinePETROLES CIE FRANCAISE·Filed 1976·Granted Jan 17, 1978·54 cites·31 claims
- 0585US4117287ACombined electrical-hydraulic connector meansPETROLES CIE FRANCAISE·Filed 1977·Granted Sep 26, 1978·44 cites·11 claims
- 0684US4223747ADrilling using reverse circulationPETROLES CIE FRANCAISE·Filed 1978·Granted Sep 23, 1980·71 cites·7 claims
- 0783US4566541AProduction tubes for use in the completion of an oil wellPETROLES CIE FRANCAISE·Filed 1984·Granted Jan 28, 1986·95 cites·5 claims
- 0882US4174188AProcess and apparatus for transfer of cargo at seaPETROLES CIE FRANCAISE·Filed 1977·Granted Nov 13, 1979·30 cites·7 claims
- 0981US4606741AProcess for purifying natural gasPETROLES CIE FRANCAISE·Filed 1985·Granted Aug 19, 1986·41 cites·5 claims
- 1080US4583603ADrill pipe jointPETROLES CIE FRANCAISE·Filed 1985·Granted Apr 22, 1986·88 cites·8 claims
- 1180US3943982AApparatus for internally checking well pipe bore and for automatically sealing leaks thereinPETROLES CIE FRANCAISE·Filed 1974·Granted Mar 16, 1976·37 cites·14 claims
- 1279US4345798AReduction in wear of contacting surfacesPETROLES CIE FRANCAISE·Filed 1981·Granted Aug 24, 1982·63 cites·10 claims
- 1377US4159257ACatalysts for hydrotreatment of hydrocarbons including methods of preparing and using samePETROLES CIE FRANCAISE·Filed 1977·Granted Jun 26, 1979·12 cites·22 claims
- 1476US4497640AProcess for the dehydration of gases containing hydrocarbonsPETROLES CIE FRANCAISE·Filed 1984·Granted Feb 5, 1985·46 cites·11 claims
- 1576US4188084AUnderwater electrical connectorsPETROLES CIE FRANCAISE·Filed 1978·Granted Feb 12, 1980·34 cites·19 claims
- 1676US4142584ATermination means for a plurality of riser pipes at a floating platformPETROLES CIE FRANCAISE·Filed 1977·Granted Mar 6, 1979·48 cites·11 claims
- 1775US4410210ARetaining grippersPETROLES CIE FRANCAISE·Filed 1981·Granted Oct 18, 1983·33 cites·3 claims
- 1875US4194567AMethod and apparatus for balancing pressures in an oil wellPETROLES CIE FRANCAISE·Filed 1978·Granted Mar 25, 1980·42 cites·18 claims
- 1974US4638984AExternal apparatus for butt welding two pipesPETROLES CIE FRANCAISE·Filed 1985·Granted Jan 27, 1987·28 cites·6 claims
- 2073US4274664APipe joining device for underseas petroleum pipelinePETROLES CIE FRANCAISE·Filed 1978·Granted Jun 23, 1981·48 cites·6 claims
- 2172US4254478AMeasurement of distance using ultrasonic signalsPETROLES CIE FRANCAISE·Filed 1979·Granted Mar 3, 1981·25 cites·10 claims
- 2271US4194568ADisconnectable riser columns for under water oil wellsPETROLES CIE FRANCAISE·Filed 1978·Granted Mar 25, 1980·41 cites·18 claims
- 2370US4560005ASliding-sleeve valve for an oil wellPETROLES CIE FRANCAISE·Filed 1984·Granted Dec 24, 1985·48 cites·9 claims
- 2470US4443129AMethod and apparatus for tapping a submerged pipePETROLES CIE FRANCAISE·Filed 1981·Granted Apr 17, 1984·35 cites·25 claims
- 2569US4207954ACore bit having axial conical core breakerPETROLES CIE FRANCAISE·Filed 1978·Granted Jun 17, 1980·29 cites·9 claims
- 2669US3961490AAnchorage of floating structuresPETROLES CIE FRANCAISE·Filed 1974·Granted Jun 8, 1976·31 cites·53 claims
- 2768US3941567ADevice for the analysis of microscopic objects by laser pyrolysis and chromatography in the gaseous phasePETROLES CIE FRANCAISE·Filed 1973·Granted Mar 2, 1976·28 cites·5 claims
- 2867US4277202APositioning of the end of an underwater flowlinePETROLES CIE FRANCAISE·Filed 1979·Granted Jul 7, 1981·27 cites·29 claims
- 2966US4182489AHeat transfer systemPETROLES CIE FRANCAISE·Filed 1977·Granted Jan 8, 1980·29 cites·50 claims
- 3063US4302652AMethod of welding the ends of submerged pipes by sleeve abutmentPETROLES CIE FRANCAISE·Filed 1979·Granted Nov 24, 1981·12 cites·17 claims
- 3162US4213555AMethod and apparatus for automatic welding of bevelled tubesPETROLES CIE FRANCAISE·Filed 1978·Granted Jul 22, 1980·14 cites·11 claims
- 3261US4279544AHelical apparatus for coupling submerged pipesPETROLES CIE FRANCAISE·Filed 1979·Granted Jul 21, 1981·28 cites·18 claims
- 3360US4485344AApparatus for electromagnetically measuring the ovalization of a ferromagnetic pipePETROLES CIE FRANCAISE·Filed 1981·Granted Nov 27, 1984·16 cites·9 claims
- 3460US3951219ADrill tool comprising a core barrel and a removable central portionPETROLES CIE FRANCAISE·Filed 1974·Granted Apr 20, 1976·25 cites·5 claims
- 3559US4506863AAutomatic hydraulic connectorsPETROLES CIE FRANCAISE·Filed 1983·Granted Mar 26, 1985·18 cites·8 claims
- 3658US4706225AProcess for obtaining and processing seismic data measured at an exploratory wellPETROLES CIE FRANCAISE·Filed 1984·Granted Nov 10, 1987·22 cites·2 claims
- 3758US4597446ASafety valves for wellsPETROLES CIE FRANCAISE·Filed 1983·Granted Jul 1, 1986·25 cites·19 claims
- 3858US4447340AMethod of tracing a well drilling mudPETROLES CIE FRANCAISE·Filed 1982·Granted May 8, 1984·17 cites·4 claims
- 3957US4305591AInflatable sealsPETROLES CIE FRANCAISE·Filed 1980·Granted Dec 15, 1981·13 cites·15 claims
- 4054US4648544AInternal chuck for butt welding two tubesPETROLES CIE FRANCAISE·Filed 1985·Granted Mar 10, 1987·14 cites·3 claims
- 4154US4194572AFire extinguishing apparatus for large oil storage reservoirsPETROLES CIE FRANCAISE·Filed 1976·Granted Mar 25, 1980·20 cites·11 claims
- 4252US4624281AControl valvePETROLES CIE FRANCAISE·Filed 1985·Granted Nov 25, 1986·18 cites·4 claims
- 4352US4518036ADevice for controlling a safety valve disposed below an activation pump in a hydrocarbon production wellPETROLES CIE FRANCAISE·Filed 1982·Granted May 21, 1985·13 cites·6 claims
- 4452US4505295AApparatus for inserting a shut-off device laterally into a pipePETROLES CIE FRANCAISE·Filed 1984·Granted Mar 19, 1985·21 cites·5 claims
- 4551US4086776ALock means for a tension linePETROLES CIE FRANCAISE·Filed 1977·Granted May 2, 1978·17 cites·8 claims
- 4651US4067199AMethod and apparatus of launching floats to lighten underwater conduitsPETROLES CIE FRANCAISE·Filed 1975·Granted Jan 10, 1978·16 cites·16 claims
- 4749US4646025AMagnetic probe exploration device for determining residual fossil magnetization of well hole rocksPETROLES CIE FRANCAISE·Filed 1985·Granted Feb 24, 1987·14 cites·8 claims
- 4849US4625795AGeomechanical probe for a drilling wellPETROLES CIE FRANCAISE·Filed 1985·Granted Dec 2, 1986·18 cites·9 claims
- 4946US4687378ATemporarily terminating laying of underwater pipe linePETROLES CIE FRANCAISE·Filed 1981·Granted Aug 18, 1987·16 cites·4 claims
- 5046US4425054AMarine platform adapted to facilitate the detection of possible cracksPETROLES CIE FRANCAISE·Filed 1981·Granted Jan 10, 1984·10 cites·4 claims
Showing the top 50 of 101 patent records by PatentIndex Score.
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