Inventor · disambiguated record
David L. Johnson
Also filed as: DOYLE TERRENCE W · JOHNSON DAVID · JOHNSON DAVID L · JOHNSON DAVID LEE
43 granted patents·5 pending applications·3,433 citations·filing 1975–2024
99Inventor score
Top patents by PatentIndex Score
48 records- 0197US6642426B1Fluid-bed aromatics alkylation with staged injection of alkylating agentsFiled 1998·Granted Nov 4, 2003·103 cites·17 claims
- 0296US5874387AMethod and cement-drilling fluid cement composition for cementing a wellboreATLANTIC RICHFIELD CO·Filed 1996·Granted Feb 23, 1999·131 cites·29 claims
- 0394US5789352AWell completion spacer fluids and methodsHALLIBURTON CO·Filed 1996·Granted Aug 4, 1998·137 cites·22 claims
- 0493US5866517AMethod and spacer fluid composition for displacing drilling fluid from a wellboreATLANTIC RICHFIELD CO·Filed 1996·Granted Feb 2, 1999·177 cites·22 claims
- 0592US5477038AMethod and apparatus for distributing currencyVISA INT·Filed 1993·Granted Dec 19, 1995·792 cites·11 claims
- 0691US9938205B2Apparatus and process for producing gasoline, olefins and aromatics from oxygenatesDU BING·Filed 2015·Granted Apr 10, 2018·6 cites·12 claims
- 0791US8252967B2Process for the purification of paraxyleneHAGEMEISTER MARK PAUL·Filed 2010·Granted Aug 28, 2012·9 cites·9 claims
- 0891USRE38255EMethod and apparatus for distributing currencyVISA INT SERVICE ASS·Filed 2001·Granted Sep 23, 2003·193 cites·34 claims
- 0990US6222087B1Catalytic production of light olefins rich in propyleneMOBIL OIL CORP·Filed 1999·Granted Apr 24, 2001·77 cites·10 claims
- 1090US5989336ACement compositionATLANTIC RICHFIELD CO·Filed 1997·Granted Nov 23, 1999·72 cites·15 claims
- 1189US8507744B2Process for the purification of paraxyleneHAGEMEISTER MARK PAUL·Filed 2012·Granted Aug 13, 2013·6 cites·9 claims
- 1289US5389232ARiser cracking for maximum C3 and C4 olefin yieldsMOBIL OIL CORP·Filed 1992·Granted Feb 14, 1995·94 cites·16 claims
- 1387US5372706AFCC regeneration process with low NOx CO boilerMOBIL OIL CORP·Filed 1993·Granted Dec 13, 1994·54 cites·19 claims
- 1486USRE36365EMethod and apparatus for distributing currencyVISA INT SERVICE ASS·Filed 1996·Granted Nov 2, 1999·370 cites·11 claims
- 1585US8313713B2Stabilizing a cuvette during measurementJACOBS MERRIT N·Filed 2004·Granted Nov 20, 2012·29 cites·14 claims
- 1685USRE37122EMethod and apparatus for distributing currencyVISA INT SERVICE ASS·Filed 1998·Granted Apr 3, 2001·356 cites·52 claims
- 1784US8981171B2Process for the purification of paraxyleneEXXONMOBIL CHEM PATENTS INC·Filed 2013·Granted Mar 17, 2015·2 cites·10 claims
- 1884US7119239B2Manufacture of xylenes using reformateEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Oct 10, 2006·13 cites·34 claims
- 1984US4873389AConversion of light olefins to gasoline using low-temperature catalyst regenerationMOBIL OIL CORP·Filed 1988·Granted Oct 10, 1989·20 cites·17 claims
- 2082US8486027B2Bone-penetrating member for intraosseous infusion and aspiration devicesFINDLAY JUDITH M·Filed 2008·Granted Jul 16, 2013·40 cites·36 claims
- 2182US7744746B2FCC catalyst stripper configurationEXXONMOBIL RES & ENG CO·Filed 2007·Granted Jun 29, 2010·7 cites·23 claims
- 2281US6902593B2Separation device to remove fine particlesKELLOGG BROWN AND ROOT INC·Filed 2003·Granted Jun 7, 2005·29 cites·36 claims
- 2380US5531884AFCC catalyst stripperMOBIL OIL CORP·Filed 1994·Granted Jul 2, 1996·43 cites·18 claims
- 2480US5458861ADesulfurizing a gas streamMOBIL OIL CORP·Filed 1994·Granted Oct 17, 1995·50 cites·24 claims
- 2579US5741469AProcess scheme for SOx removal from flue gasesMOBIL OIL CORP·Filed 1996·Granted Apr 21, 1998·45 cites·27 claims
- 2678US11283923B1Method and apparatus for handling citizen callback of public-safety officerMOTOROLA SOLUTIONS INC·Filed 2021·Granted Mar 22, 2022·1 cites·11 claims
- 2776US7347840B2Patch for locating a target zone for penetrationPYNG MEDICAL CORP·Filed 2004·Granted Mar 25, 2008·59 cites·24 claims
- 2876US4899014AUpgrading propene-ethene mixtures in a turbulent fluidized catalyst bed reactorAVIDAN AMOS A·Filed 1988·Granted Feb 6, 1990·34 cites·16 claims
- 2973US5538623AFCC catalyst stripping with vapor recycleFiled 1993·Granted Jul 23, 1996·34 cites·6 claims
- 3070US5817052AApparatus for intraosseous infusion or aspirationPYNG MEDICAL CORP·Filed 1995·Granted Oct 6, 1998·136 cites·27 claims
- 3167US6761726B1Method and apparatus for the intraosseous introduction of a device such as an infusion tubePYNG MEDICAL CORP·Filed 1998·Granted Jul 13, 2004·156 cites·20 claims
- 3267US5382352AConversion of NOx in FCC bubbling bed regeneratorMOBIL OIL CORP·Filed 1992·Granted Jan 17, 1995·25 cites·20 claims
- 3365US5728358ASox sorbent regenerationMOBIL OIL CORP·Filed 1996·Granted Mar 17, 1998·32 cites·6 claims
- 3464US4873385ASingle zone oligomerization of lower olefins to distillate under low severity in a fluid bed with tailored activityMOBIL OIL CORP·Filed 1988·Granted Oct 10, 1989·19 cites·12 claims
- 3559US7040143B2Method and apparatus for testing surface characteristics of a materialALLIANT TECHSYSTEMS INC·Filed 2003·Granted May 9, 2006·6 cites·46 claims
- 3659US4047961ACement compositionGEN PORTLAND INC·Filed 1975·Granted Sep 13, 1977·17 cites·13 claims
- 3759US2014278577A1System and method for generating insurance premium quotesBAUM PHILIP·Filed 2014·Application pending·0 cites
- 3856US5380426AActive bed fluidized catalyst strippingMOBIL OIL CORP·Filed 1993·Granted Jan 10, 1995·18 cites·18 claims
- 3954US10173946B2Apparatus and process for producing gasoline, olefins and aromatics from oxygenatesDU BING·Filed 2015·Granted Jan 8, 2019·0 cites·9 claims
- 4052US4855912AMethod and apparatus for measurement of the thermal behavior of porous mediaSCHLUMBERGER TECHNOLOGY CORP·Filed 1988·Granted Aug 8, 1989·17 cites·39 claims
- 4151US2025137355A1Wellbore cleaning toolsWELLBORE INTEGRITY SOLUTIONS LLC·Filed 2024·Application pending·0 cites
- 4249US6027704AProcess for the reduction of SO2 from wet lime/limestone tailgas in power plant desulfurization processesMOBIL OIL CORP·Filed 1997·Granted Feb 22, 2000·9 cites·11 claims
- 4348US2013102924A1Apparatus for introducing intraosseous portalsPYNG MEDICAL CORP·Filed 2012·Application pending·0 cites
- 4446US4189568AAntibiotic purification processBRISTOL MYERS CO·Filed 1978·Granted Feb 19, 1980·4 cites·2 claims
- 4545US5954942ACatalytic cracking with delayed quenchMOBIL OIL CORP·Filed 1992·Granted Sep 21, 1999·11 cites·5 claims
- 4643US2013165717A1Process for increased production of fcc gasolineEXXONMOBIL RES & ENG CO·Filed 2012·Application pending·0 cites
- 4742US2014165356A1Conversion of a reforming process/unit into a partial naphtha cracking process/unitNOVAK WILLIAM J·Filed 2013·Application pending·0 cites
- 4837US8571697B2Apparatus and method for double end manufacturing of componentsCHANDLER JEFFREY D·Filed 2010·Granted Oct 29, 2013·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →