Assignee
KOBE INC
60 granted patents·1,313 citations·filing 1974–1982
Top patents by PatentIndex Score
60 records- 0197US4278399APumping stage for multi-stage centrifugal pumpKOBE INC·Filed 1979·Granted Jul 14, 1981·90 cites·2 claims
- 0288US4059364APitot compressor with liquid separatorKOBE INC·Filed 1976·Granted Nov 22, 1977·55 cites·18 claims
- 0387US4101246AVortex jet pumpKOBE INC·Filed 1976·Granted Jul 18, 1978·40 cites·11 claims
- 0484US4304410ASealing structure for reciprocating pistons exposed to high pressure differentialsKOBE INC·Filed 1979·Granted Dec 8, 1981·38 cites·2 claims
- 0584US4285401AElectric and hydraulic powered thermal stimulation and recovery system and method for subterranean wellsKOBE INC·Filed 1980·Granted Aug 25, 1981·59 cites·25 claims
- 0683US4073596ALubricant cooling for high-speed pitot pumpKOBE INC·Filed 1976·Granted Feb 14, 1978·34 cites·50 claims
- 0782US3960319ACentrifugal separatorKOBE INC·Filed 1974·Granted Jun 1, 1976·31 cites·16 claims
- 0881US4310288AMethod and apparatus for improving erosion resistance of the mixing chamber of a jet pumpKOBE INC·Filed 1979·Granted Jan 12, 1982·31 cites·6 claims
- 0981US4294573ASubmersible electrically powered centrifugal and jet pump assemblyKOBE INC·Filed 1979·Granted Oct 13, 1981·30 cites·19 claims
- 1081US4280662AErosion resistant jet pump and method of making sameKOBE INC·Filed 1979·Granted Jul 28, 1981·31 cites·8 claims
- 1181US4198218AGas separation apparatusKOBE INC·Filed 1979·Granted Apr 15, 1980·33 cites·6 claims
- 1280US4253524AHigh flow check valve apparatusKOBE INC·Filed 1979·Granted Mar 3, 1981·29 cites·1 claims
- 1380US4135861AJet pump with ceramic venturiKOBE INC·Filed 1977·Granted Jan 23, 1979·36 cites·9 claims
- 1479US4243528ATreater for mechanically breaking oil and water emulsions of a production fluid from a petroleum wellKOBE INC·Filed 1979·Granted Jan 6, 1981·37 cites·17 claims
- 1579US4233154AMethod for treating petroleum well pumping power fluidKOBE INC·Filed 1978·Granted Nov 11, 1980·54 cites·6 claims
- 1679US4047581AMultistage, downhole, turbo-powered intensifier for drilling petroleum wellsKOBE INC·Filed 1976·Granted Sep 13, 1977·35 cites·19 claims
- 1779US4044943ACentrifugal separator and systemKOBE INC·Filed 1976·Granted Aug 30, 1977·39 cites·25 claims
- 1874US4381175AJet electric pumpKOBE INC·Filed 1980·Granted Apr 26, 1983·25 cites·3 claims
- 1973US4113452AGas/liquid separatorKOBE INC·Filed 1977·Granted Sep 12, 1978·25 cites·17 claims
- 2072US4346256AConduit in supplying electrical power and pressurized fluid to a point in a subterranean wellKOBE INC·Filed 1980·Granted Aug 24, 1982·44 cites·2 claims
- 2171US4036427ACombination pitot pump and centrifugal separatorKOBE INC·Filed 1975·Granted Jul 19, 1977·27 cites·70 claims
- 2269US4267964ACentrifugal separator with rotating pick-up tubeKOBE INC·Filed 1979·Granted May 19, 1981·27 cites·10 claims
- 2368US4262226AInsulating fluid system for protecting submersible electric motors from surrounding fluidsKOBE INC·Filed 1979·Granted Apr 14, 1981·20 cites·1 claims
- 2468US4252499ACentrifugal pumpKOBE INC·Filed 1979·Granted Feb 24, 1981·23 cites·6 claims
- 2567US4227865AConstant fluid film thickness hydrostatic thrust bearingKOBE INC·Filed 1979·Granted Oct 14, 1980·20 cites·9 claims
- 2666US4425083AVelocity actuated valve for a downhole pumpKOBE INC·Filed 1981·Granted Jan 10, 1984·20 cites·5 claims
- 2766US4299352ACentrifuge apparatusKOBE INC·Filed 1979·Granted Nov 10, 1981·18 cites·6 claims
- 2864US4286185AOil drying system for motorsKOBE INC·Filed 1979·Granted Aug 25, 1981·18 cites·2 claims
- 2962US4264285ADownhole cleaner assembly for cleansing lubricant of downhole turbo-machines within wellsKOBE INC·Filed 1979·Granted Apr 28, 1981·16 cites·39 claims
- 3061US4280790ACentrifugal pitot pump with means for improving net positive suction headKOBE INC·Filed 1979·Granted Jul 28, 1981·21 cites·7 claims
- 3160US4279571APitot pump with fluid lubricated bearingsKOBE INC·Filed 1979·Granted Jul 21, 1981·17 cites·7 claims
- 3258US4264269ACentrifugal pitot pump with improved pitotKOBE INC·Filed 1978·Granted Apr 28, 1981·18 cites·26 claims
- 3358US4161448ACombined separator and pump with dirty phase concentratorKOBE INC·Filed 1978·Granted Jul 17, 1979·17 cites·15 claims
- 3458US3977810AMultiple outlet, constant flow, pitot pumpKOBE INC·Filed 1974·Granted Aug 31, 1976·14 cites·12 claims
- 3557US3994618AMultiple outlet pitot pump with different output flows and/or pressuresKOBE INC·Filed 1975·Granted Nov 30, 1976·16 cites·3 claims
- 3656US4103749ADownhole cleaner assembly for petroleum wellsKOBE INC·Filed 1977·Granted Aug 1, 1978·11 cites·22 claims
- 3755US4268281AMethod of removing particulate contaminants from a gas streamKOBE INC·Filed 1979·Granted May 19, 1981·13 cites·2 claims
- 3854US4283005APump and centrifugal separator apparatusKOBE INC·Filed 1979·Granted Aug 11, 1981·12 cites·1 claims
- 3954US4281962AHigh pressure centrifugal pumpKOBE INC·Filed 1979·Granted Aug 4, 1981·13 cites·14 claims
- 4053US4292011ATurbo pump gas compressorKOBE INC·Filed 1979·Granted Sep 29, 1981·16 cites·5 claims
- 4153US4183713APitot pump with jet pump operated thrust balanceKOBE INC·Filed 1978·Granted Jan 15, 1980·14 cites·10 claims
- 4253US4159036AHigh pressure cleaning and pumping method and apparatus for oil well productionKOBE INC·Filed 1978·Granted Jun 26, 1979·19 cites·12 claims
- 4353US4082482AArticulated turbine pumpKOBE INC·Filed 1977·Granted Apr 4, 1978·14 cites·37 claims
- 4442US4289610AApparatus for pumping and conditioning drilling fluidKOBE INC·Filed 1979·Granted Sep 15, 1981·6 cites·3 claims
- 4542US3982589ACleaning and pumping apparatus for oil well productionKOBE INC·Filed 1975·Granted Sep 28, 1976·13 cites·15 claims
- 4641US4273509ASelf-powered cleaning unit for a fluid pumpKOBE INC·Filed 1979·Granted Jun 16, 1981·9 cites·13 claims
- 4740US4260658AErosion resistant surfaceKOBE INC·Filed 1979·Granted Apr 7, 1981·8 cites·5 claims
- 4840US4237976AHydraulic well pumping methodKOBE INC·Filed 1979·Granted Dec 9, 1980·10 cites·27 claims
- 4940US4045145APitot pump with turbulence eliminationKOBE INC·Filed 1975·Granted Aug 30, 1977·9 cites·3 claims
- 5039US4332521AHigh speed jet rotating casing apparatusKOBE INC·Filed 1980·Granted Jun 1, 1982·7 cites·5 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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