Inventor · disambiguated record
William J. Heilman
Also filed as: HEILMAN WILLIAM J
43 granted patents·1,785 citations·filing 1970–2010
99Inventor score
Files withGULF OIL CORP16PENNZOIL PROD CO11GULF RESEARCH DEVELOPMENT CO9PENNZOIL QUAKER STATE CO3HEILMAN WILLIAM J2
Top patents by PatentIndex Score
43 records- 0198US5221534AHealth and beauty aid compositionsPENNZOIL PROD CO·Filed 1991·Granted Jun 22, 1993·412 cites·13 claims
- 0297US7129197B2Synthesis of poly-alpha olefin and use thereofSHELL OIL CO·Filed 2002·Granted Oct 31, 2006·93 cites·32 claims
- 0395US5180865ABase oil for shear stable multi-viscosity lubricants and lubricants therefromPENNZOIL PROD CO·Filed 1991·Granted Jan 19, 1993·70 cites·4 claims
- 0495US3957664ALubricant and hydraulic fluid compositionsGULF RESEARCH DEVELOPMENT CO·Filed 1974·Granted May 18, 1976·31 cites·6 claims
- 0594US4251417ANovel acetylene end-capped polyimide oligomersGULF OIL CORP·Filed 1979·Granted Feb 17, 1981·64 cites·20 claims
- 0694US4132663AMineral oil compositions having improved pour point containing alpha-olefin copolymersGULF RESEARCH DEVELOPMENT CO·Filed 1977·Granted Jan 2, 1979·60 cites·7 claims
- 0793US4255313ANovel end-capped polyimide oligomersGULF OIL CORP·Filed 1979·Granted Mar 10, 1981·62 cites·15 claims
- 0893US4045508AMethod of making alpha-olefin oligomersGULF RESEARCH DEVELOPMENT CO·Filed 1975·Granted Aug 30, 1977·47 cites·10 claims
- 0992US5188724AOlefin polymer pour point depressantsPENNZOIL PROD CO·Filed 1991·Granted Feb 23, 1993·54 cites·7 claims
- 1092US4282392AAlpha-olefin oligomer synthetic lubricantGULF RESEARCH DEVELOPMENT CO·Filed 1978·Granted Aug 4, 1981·49 cites·6 claims
- 1192US4032591APreparation of alpha-olefin oligomer synthetic lubricantGULF RESEARCH DEVELOPMENT CO·Filed 1975·Granted Jun 28, 1977·54 cites·6 claims
- 1290US4251420AEnd-capped polyimide oligomersGULF OIL CORP·Filed 1979·Granted Feb 17, 1981·45 cites·20 claims
- 1390US4045507AMethod of oligomerizing 1-olefinsGULF RESEARCH DEVELOPMENT CO·Filed 1975·Granted Aug 30, 1977·68 cites·10 claims
- 1489US8168838B2Hydrocarbon compositions useful as lubricantsHEILMAN WILLIAM J·Filed 2010·Granted May 1, 2012·10 cites·20 claims
- 1589US5436379ABase oil for shear stable multi-viscosity lubricants and lubricants therefromPENNZOIL PROD CO·Filed 1994·Granted Jul 25, 1995·42 cites·6 claims
- 1689US4299750ANovel partially acetylene end-capped polyimide oligomersGULF OIL CORP·Filed 1979·Granted Nov 10, 1981·44 cites·14 claims
- 1788US5879694ATransparent gel candlesPENNZOIL PROD CO·Filed 1997·Granted Mar 9, 1999·160 cites·10 claims
- 1886US3965018AProcess for preparing a concentrate of a polyalpha-olefin in a lubricating oil base stockGULF RESEARCH DEVELOPMENT CO·Filed 1974·Granted Jun 22, 1976·28 cites·9 claims
- 1984US6417416B1Ethylene-alpha-olefin polymers, processes and usesPENNZOIL QUAKER STATE CO·Filed 2000·Granted Jul 9, 2002·15 cites·87 claims
- 2083US6124513AEthylene-alpha-olefin polymers, processes and usesPENNZOIL QUAKER STATE CO·Filed 1997·Granted Sep 26, 2000·27 cites·10 claims
- 2182US4251419ANovel vinyl end-capped polyimide oligomersGULF OIL CORP·Filed 1979·Granted Feb 17, 1981·31 cites·13 claims
- 2281US4218555AProcess for preparation of acetylene end-capped polyimide oligomersGULF OIL CORP·Filed 1978·Granted Aug 19, 1980·32 cites·15 claims
- 2381US4206106AVinyl end-capped polyimide oligomersGULF OIL CORP·Filed 1979·Granted Jun 3, 1980·30 cites·17 claims
- 2479US7524796B1Environmentally acceptable polymer suspensions for oil field applicationsHEILMAN WILLIAM J·Filed 2008·Granted Apr 28, 2009·18 cites·9 claims
- 2577US3997499AResin-forming homogeneous solutions of styrene, maleic anhydride and copolymers thereofGULF OIL CORP·Filed 1975·Granted Dec 14, 1976·19 cites·10 claims
- 2672US6066329ATransparent gel candlesPENNZOIL PROD CO·Filed 1999·Granted May 23, 2000·31 cites·20 claims
- 2771US4056506AHomogeneous polyepoxide-polyanhydride compositionsGULF OIL CORP·Filed 1976·Granted Nov 1, 1977·16 cites·12 claims
- 2870US6730818B2Ethylene alpha-olefin polymers, process and usesPENZOIL QUAKER STATE COMPANY·Filed 2002·Granted May 4, 2004·8 cites·29 claims
- 2969US4017453AHomogeneous polyepoxide-polyanhydride compositionsGULF OIL CORP·Filed 1975·Granted Apr 12, 1977·18 cites·16 claims
- 3067US4525557ACatalyst and process for the polymerization of ethyleneGULF OIL CORP·Filed 1984·Granted Jun 25, 1985·15 cites·10 claims
- 3166US4956111AMethacrylate pour point depressants and compositionsPENNZOIL PROD CO·Filed 1989·Granted Sep 11, 1990·18 cites·27 claims
- 3264US4167539AStyrene-grafted polyanhydride copolymerGULF OIL CORP·Filed 1977·Granted Sep 11, 1979·14 cites·12 claims
- 3363US4097449AHandleable, thermosettable epoxide-polyanhydride compositionsGULF OIL CORP·Filed 1977·Granted Jun 27, 1978·14 cites·16 claims
- 3463US3957831APreparation of glycidyl esters of unsaturated acidsGULF RESEARCH DEVELOPMENT CO·Filed 1970·Granted May 18, 1976·5 cites·2 claims
- 3561US4844829AMethacrylate pour point depressants and compositionsPENNZOIL PROD CO·Filed 1988·Granted Jul 4, 1989·15 cites·21 claims
- 3657US4018695APolymer-modified automatic transmission fluidGULF RESEARCH DEVELOPMENT CO·Filed 1976·Granted Apr 19, 1977·11 cites·6 claims
- 3753US5728907ATetraalkylmethanes as synthetic lubricantsPENNZOIL PROD CO·Filed 1995·Granted Mar 17, 1998·13 cites·43 claims
- 3852US6586646B1Vinylidene-containing polymers and uses thereofPENNZOIL QUAKER STATE CO·Filed 1999·Granted Jul 1, 2003·12 cites·21 claims
- 3947US5015507AMethod of converting rusted surface to a durable onePENNZOIL PROD CO·Filed 1989·Granted May 14, 1991·11 cites·15 claims
- 4042US4945017ARust conversion compositionPENNZOIL PROD CO·Filed 1989·Granted Jul 31, 1990·8 cites·15 claims
- 4142US4133792AResin solutions of acetylene containing polyamide acidsGULF OIL CORP·Filed 1977·Granted Jan 9, 1979·4 cites·5 claims
- 4239US4097448AThermosettable epoxide-polyanhydride compositionsGULF OIL CORP·Filed 1977·Granted Jun 27, 1978·4 cites·19 claims
- 4334US4337110ALaminates prepared from solutions of resins containing amic acid groupsGULF OIL CORP·Filed 1978·Granted Jun 29, 1982·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →