Inventor · disambiguated record
Delwin E. Cobb
Also filed as: COBB DELWIN E
24 granted patents·1 pending application·492 citations·filing 1975–2021
96Inventor score
Top patents by PatentIndex Score
25 records- 0191US8051907B2Downhole separatorCOBB DELWIN E·Filed 2011·Granted Nov 8, 2011·14 cites·18 claims
- 0288US6382317B1Apparatus and method for separating gas and solids from well fluidsFiled 2000·Granted May 7, 2002·91 cites·21 claims
- 0387US7909092B2Downhole separatorSEPACO LLC·Filed 2009·Granted Mar 22, 2011·33 cites·16 claims
- 0486US5314018AApparatus and method for separating solid particles from liquidsCOBB DELWIN E·Filed 1992·Granted May 24, 1994·93 cites·17 claims
- 0582US4184808AFluid driven pumpCATERPILLAR TRACTOR CO·Filed 1977·Granted Jan 22, 1980·26 cites·16 claims
- 0681US9045979B2Downhole gas separator and methodCOBB DELWIN E·Filed 2012·Granted Jun 2, 2015·8 cites·19 claims
- 0773US7314095B2Gardening toolCOBB DELWIN E·Filed 2004·Granted Jan 1, 2008·19 cites·17 claims
- 0868US4231726AGear pump having fluid deaeration capabilityCATERPILLAR TRACTOR CO·Filed 1978·Granted Nov 4, 1980·20 cites·15 claims
- 0963USRE35454EApparatus and method for separating solid particles from liquidsFiled 1995·Granted Feb 18, 1997·40 cites·17 claims
- 1063US4355964AGear pump having fluid deaeration capabilityCATERPILLAR TRACTOR CO·Filed 1980·Granted Oct 26, 1982·19 cites·11 claims
- 1163US4003603AImpact means for ripperCATERPILLAR TRACTOR CO·Filed 1975·Granted Jan 18, 1977·19 cites·12 claims
- 1260US4229044AClevis-mounted impact ripperCATERPILLAR TRACTOR CO·Filed 1979·Granted Oct 21, 1980·15 cites·14 claims
- 1357US5810081AWear structure for bore hole separation deviceFiled 1997·Granted Sep 22, 1998·39 cites·12 claims
- 1454US4070064ACooling system for rock ripper tipCATERPILLAR TRACTOR CO·Filed 1976·Granted Jan 24, 1978·11 cites·10 claims
- 1552US7673684B2ESP/separator assembly and methodCOBB DELWIN E·Filed 2008·Granted Mar 9, 2010·3 cites·16 claims
- 1643US11536126B2Downhole gas-liquid separatorCOBB DELWIN E·Filed 2021·Granted Dec 27, 2022·0 cites·12 claims
- 1743US4030566AHydraulic system for rock breakerCATERPILLAR TRACTOR CO·Filed 1975·Granted Jun 21, 1977·5 cites·7 claims
- 1842US4703838ARecoil damper for a reciprocating memberCATERPILLAR TRACTOR CO·Filed 1982·Granted Nov 3, 1987·10 cites·11 claims
- 1941US4746222AMixing and cooling apparatus for hot, particulate matterUNION OIL CO·Filed 1987·Granted May 24, 1988·11 cites·54 claims
- 2040US2017151510A1Downhole liquid / gas separatorCOBB DELWIN E·Filed 2015·Application pending·0 cites
- 2138USD438905SCombined wire stand and cardFiled 2000·Granted Mar 13, 2001·5 cites·1 claims
- 2238US4278295AImpacting rock breakerCATERPILLAR TRACTOR CO·Filed 1979·Granted Jul 14, 1981·5 cites·8 claims
- 2336US4820382AMethod and apparatus for removing solids from an upwardly moving bed chamberUNION OIL CO·Filed 1988·Granted Apr 11, 1989·2 cites·17 claims
- 2430US3990595AMounting arrangement for impact rock breakerCATERPILLAR TRACTOR CO·Filed 1975·Granted Nov 9, 1976·2 cites·15 claims
- 2529USD437000SCard hangerFiled 2000·Granted Jan 30, 2001·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →