Assignee
BAKER OIL TOOLS INC
US·130 granted patents·6,381 citations·filing 1972–1988
Top patents by PatentIndex Score
130 records- 0196US4862967AMethod of employing a coated elastomeric packing elementBAKER OIL TOOLS INC·Filed 1988·Granted Sep 5, 1989·183 cites·2 claims
- 0296US4657089AMethod and apparatus for initiating subterranean well perforating gun firing from bottom to topBAKER OIL TOOLS INC·Filed 1985·Granted Apr 14, 1987·94 cites·29 claims
- 0396US4495073ARetrievable screen device for drill pipe and the likeBAKER OIL TOOLS INC·Filed 1983·Granted Jan 22, 1985·176 cites·7 claims
- 0496US4413682AMethod and apparatus for installing a cementing float shoe on the bottom of a well casingBAKER OIL TOOLS INC·Filed 1982·Granted Nov 8, 1983·259 cites·8 claims
- 0595US4605063AChemical injection tubing anchor-catcherBAKER OIL TOOLS INC·Filed 1984·Granted Aug 12, 1986·131 cites·3 claims
- 0695US4564459AProppant charge and methodBAKER OIL TOOLS INC·Filed 1984·Granted Jan 14, 1986·145 cites·2 claims
- 0795US4443347AProppant charge and methodBAKER OIL TOOLS INC·Filed 1983·Granted Apr 17, 1984·124 cites·1 claims
- 0893US4541486AOne trip perforating and gravel pack systemBAKER OIL TOOLS INC·Filed 1983·Granted Sep 17, 1985·113 cites·25 claims
- 0993US4531552AConcentric insulating conduitBAKER OIL TOOLS INC·Filed 1983·Granted Jul 30, 1985·101 cites·9 claims
- 1091US4523649ARotational alignment method and apparatus for tubing conveyed perforating gunsBAKER OIL TOOLS INC·Filed 1983·Granted Jun 18, 1985·95 cites·2 claims
- 1190US4664819AProppant charge and methodBAKER OIL TOOLS INC·Filed 1985·Granted May 12, 1987·90 cites·4 claims
- 1290US4611658AHigh pressure retrievable gravel packing apparatusBAKER OIL TOOLS INC·Filed 1984·Granted Sep 16, 1986·89 cites·4 claims
- 1390US4478286AEqualizing valve for subterranean wellsBAKER OIL TOOLS INC·Filed 1983·Granted Oct 23, 1984·114 cites·14 claims
- 1489US4747201ABoosterless perforating gunBAKER OIL TOOLS INC·Filed 1986·Granted May 31, 1988·95 cites·11 claims
- 1589US4498536AMethod of washing, injecting swabbing or flow testing subterranean wellsBAKER OIL TOOLS INC·Filed 1983·Granted Feb 12, 1985·86 cites·3 claims
- 1689US4457376AFlapper type safety valve for subterranean wellsBAKER OIL TOOLS INC·Filed 1982·Granted Jul 3, 1984·123 cites·17 claims
- 1788US4708208AMethod and apparatus for setting, unsetting, and retrieving a packer from a subterranean wellBAKER OIL TOOLS INC·Filed 1986·Granted Nov 24, 1987·111 cites·18 claims
- 1888US4552218AUnloading injection control valveBAKER OIL TOOLS INC·Filed 1983·Granted Nov 12, 1985·80 cites·9 claims
- 1988US4531587ADownhole flapper valveBAKER OIL TOOLS INC·Filed 1984·Granted Jul 30, 1985·95 cites·14 claims
- 2088US4415036APressure equalizing flapper type safety valve for subterranean wellsBAKER OIL TOOLS INC·Filed 1982·Granted Nov 15, 1983·84 cites·15 claims
- 2187US4755230AMethod of and composition for removing paraffin deposits from hydrocarbon transmission conduitsBAKER OIL TOOLS INC·Filed 1987·Granted Jul 5, 1988·81 cites·4 claims
- 2287US4509599AGas well liquid removal system and processBAKER OIL TOOLS INC·Filed 1982·Granted Apr 9, 1985·79 cites·18 claims
- 2386US4526233AReleasable coupling for tubing conveyed subterranean well perforating gunBAKER OIL TOOLS INC·Filed 1984·Granted Jul 2, 1985·67 cites·17 claims
- 2486US4508167ASelective casing bore receptacleBAKER OIL TOOLS INC·Filed 1983·Granted Apr 2, 1985·73 cites·29 claims
- 2585US4665978AHigh temperature packer for well conduitsBAKER OIL TOOLS INC·Filed 1985·Granted May 19, 1987·74 cites·5 claims
- 2685US4541484ACombination gravel packing device and methodBAKER OIL TOOLS INC·Filed 1984·Granted Sep 17, 1985·66 cites·10 claims
- 2785US4515217APerforating gun pressure activated sliding sleeveBAKER OIL TOOLS INC·Filed 1983·Granted May 7, 1985·64 cites·9 claims
- 2885US4467867ASubterranean well safety valve with reference pressure chamberBAKER OIL TOOLS INC·Filed 1982·Granted Aug 28, 1984·64 cites·28 claims
- 2985US4457379AMethod and apparatus for opening downhole flapper valvesBAKER OIL TOOLS INC·Filed 1982·Granted Jul 3, 1984·66 cites·9 claims
- 3085US3987854AGravel packing apparatus and methodBAKER OIL TOOLS INC·Filed 1972·Granted Oct 26, 1976·78 cites·23 claims
- 3185US3963076AMethod and apparatus for gravel packing well boresBAKER OIL TOOLS INC·Filed 1975·Granted Jun 15, 1976·113 cites·19 claims
- 3283US4730835AAnti-extrusion seal elementBAKER OIL TOOLS INC·Filed 1986·Granted Mar 15, 1988·75 cites·12 claims
- 3383US4566538AFail-safe one trip perforating and gravel pack systemBAKER OIL TOOLS INC·Filed 1984·Granted Jan 28, 1986·56 cites·17 claims
- 3483US4467870AFluid pressure actuator for subterranean well apparatusBAKER OIL TOOLS INC·Filed 1982·Granted Aug 28, 1984·88 cites·16 claims
- 3583US4436151AApparatus for well cementing through a tubular memberBAKER OIL TOOLS INC·Filed 1982·Granted Mar 13, 1984·64 cites·5 claims
- 3682US4648455AMethod and apparatus for steam injection in subterranean wellsBAKER OIL TOOLS INC·Filed 1986·Granted Mar 10, 1987·63 cites·24 claims
- 3782US4577694APermanent lock open toolBAKER OIL TOOLS INC·Filed 1983·Granted Mar 25, 1986·62 cites·20 claims
- 3882US4548265ADownhole steam packingBAKER OIL TOOLS INC·Filed 1983·Granted Oct 22, 1985·56 cites·39 claims
- 3982US4479556ASubterranean well casing perforating gunBAKER OIL TOOLS INC·Filed 1982·Granted Oct 30, 1984·33 cites·12 claims
- 4081US4836278AApparatus for isolating a plurality of vertically spaced perforations in a well conduitBAKER OIL TOOLS INC·Filed 1988·Granted Jun 6, 1989·68 cites·2 claims
- 4180US4838349AApparatus for testing selected zones of a subterranean boreBAKER OIL TOOLS INC·Filed 1987·Granted Jun 13, 1989·61 cites·14 claims
- 4280US4635734ABoosterless perforating gun and method of assemblyBAKER OIL TOOLS INC·Filed 1985·Granted Jan 13, 1987·35 cites·13 claims
- 4380US4612985ASeal assembly for well toolsBAKER OIL TOOLS INC·Filed 1985·Granted Sep 23, 1986·58 cites·2 claims
- 4479US4921045ASlip retention mechanism for subterranean well packerBAKER OIL TOOLS INC·Filed 1985·Granted May 1, 1990·77 cites·6 claims
- 4579US4796705ASubsurface well safety valveBAKER OIL TOOLS INC·Filed 1987·Granted Jan 10, 1989·73 cites·9 claims
- 4679US4427071AFlapper type safety valve for subterranean wellsBAKER OIL TOOLS INC·Filed 1982·Granted Jan 24, 1984·51 cites·1 claims
- 4779US3971438AWireline safety valve with split ballBAKER OIL TOOLS INC·Filed 1975·Granted Jul 27, 1976·45 cites·28 claims
- 4878US4510995ADownhole locking apparatusBAKER OIL TOOLS INC·Filed 1983·Granted Apr 16, 1985·50 cites·17 claims
- 4978US4450912AMethod and apparatus for well cementing through a tubular memberBAKER OIL TOOLS INC·Filed 1982·Granted May 29, 1984·51 cites·11 claims
- 5076US4709758AHigh temperature packer for well conduitsBAKER OIL TOOLS INC·Filed 1985·Granted Dec 1, 1987·39 cites·4 claims
Showing the top 50 of 130 patent records by PatentIndex Score.
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