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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →