Assignee
PETROLITE CORP
431 granted patents·7,553 citations·filing 1971–1996
Top patents by PatentIndex Score
431 records- 0199US4106904ASubstituted pyridines and dihydropyridines as corrosion inhibitorsPETROLITE CORP·Filed 1976·Granted Aug 15, 1978·101 cites·6 claims
- 0298US5169411ASuppression of the evolution of hydrogen sulfide gases from crude oil, petroleum residua and fuelsPETROLITE CORP·Filed 1991·Granted Dec 8, 1992·115 cites·47 claims
- 0397US5074991ASuppression of the evolution of hydrogen sulfide gasesPETROLITE CORP·Filed 1990·Granted Dec 24, 1991·117 cites·36 claims
- 0496US4416668AAntistatic agents for organic liquidsPETROLITE CORP·Filed 1982·Granted Nov 22, 1983·62 cites·6 claims
- 0596US4085134AAmino-phosphonic-sulfonic acidsPETROLITE CORP·Filed 1974·Granted Apr 18, 1978·66 cites·10 claims
- 0695US4446056APreparation of mixture of nitrogen and sulfur-nitrogen heterocyclics and use in corrosion inhibitingPETROLITE CORP·Filed 1979·Granted May 1, 1984·30 cites·15 claims
- 0795US3936729AConductivity measurement probePETROLITE CORP·Filed 1974·Granted Feb 3, 1976·97 cites·10 claims
- 0894US5112496AMethods for inhibition of scale in high brine environmentsPETROLITE CORP·Filed 1991·Granted May 12, 1992·149 cites·2 claims
- 0994US4796702AMultipurpose aqueous foamerPETROLITE CORP·Filed 1987·Granted Jan 10, 1989·88 cites·14 claims
- 1094US4443609ATetrahydrothiazole phosphonic acids or esters thereofPETROLITE CORP·Filed 1980·Granted Apr 17, 1984·53 cites·5 claims
- 1194US3974116AEmulsion suspensions and process for adding same to systemPETROLITE CORP·Filed 1974·Granted Aug 10, 1976·54 cites·15 claims
- 1293US4770796AEncapsulated breaker for cross-linked acid gel, fracture acidizing fluid containing same and method of use thereofPETROLITE CORP·Filed 1987·Granted Sep 13, 1988·112 cites·15 claims
- 1393US4537601AAntistats containing acrylonitrile copolymers and polyaminesPETROLITE CORP·Filed 1984·Granted Aug 27, 1985·47 cites·12 claims
- 1493US4383438AFouling test apparatusPETROLITE CORP·Filed 1981·Granted May 17, 1983·93 cites·12 claims
- 1593US4113709APolyquaternary polythiazinesPETROLITE CORP·Filed 1976·Granted Sep 12, 1978·29 cites·17 claims
- 1693US4084940AEmulsions of enhanced ignitibilityPETROLITE CORP·Filed 1974·Granted Apr 18, 1978·45 cites·11 claims
- 1793US4080375AMethylene phosphonates of amino-terminated oxyalkylates and uses thereforPETROLITE CORP·Filed 1976·Granted Mar 21, 1978·64 cites·9 claims
- 1892US4931189AMethods for inhibition of scale in high brine environmentsPETROLITE CORP·Filed 1989·Granted Jun 5, 1990·52 cites·2 claims
- 1992US4032514AOxyalkylated cyclic phenol-aldehyde resins and uses thereforPETROLITE CORP·Filed 1976·Granted Jun 28, 1977·65 cites·6 claims
- 2092US3988508AHigh internal phase ratio emulsion polymersPETROLITE CORP·Filed 1973·Granted Oct 26, 1976·71 cites·14 claims
- 2191US5160642APolyimide quaternary salts as clay stabilization agentsPETROLITE CORP·Filed 1990·Granted Nov 3, 1992·72 cites·22 claims
- 2291US4941994ACorrosion inhibitors for use in hot hydrocarbonsPETROLITE CORP·Filed 1989·Granted Jul 17, 1990·46 cites·5 claims
- 2391US4235838AUse of benzazoles as corrosion inhibitorsPETROLITE CORP·Filed 1978·Granted Nov 25, 1980·37 cites·14 claims
- 2491US4187245AHydroxypropylene-amino-phosphonic-sulfonic acidsPETROLITE CORP·Filed 1978·Granted Feb 5, 1980·24 cites·11 claims
- 2591US4163728APreparation of magnesium-containing dispersions from magnesium carboxylates at low carboxylate stoichiometryPETROLITE CORP·Filed 1977·Granted Aug 7, 1979·43 cites·16 claims
- 2690US4983186AMethods and compositions for reduction of drag in hydrocarbon fluidsPETROLITE CORP·Filed 1989·Granted Jan 8, 1991·43 cites·18 claims
- 2790US4511480ACorrosion inhibition in deep gas wells by phosphate esters of poly-oxyalkylated thiolsPETROLITE CORP·Filed 1983·Granted Apr 16, 1985·43 cites·9 claims
- 2890US4339349ACorrosion inhibitors for limited oxygen systemsPETROLITE CORP·Filed 1980·Granted Jul 13, 1982·60 cites·18 claims
- 2990US4121026ACopolymers of alpha-olefins and maleic anhydride reacted with amines in the presence of Lewis acidsPETROLITE CORP·Filed 1973·Granted Oct 17, 1978·29 cites·10 claims
- 3089US4356002AAnti-static compositionsPETROLITE CORP·Filed 1978·Granted Oct 26, 1982·52 cites·16 claims
- 3189US4332967ACompounds containing sulfur and amino groupsPETROLITE CORP·Filed 1980·Granted Jun 1, 1982·19 cites·6 claims
- 3289US4051110AMethylene phosphonates of polymerized polyalkylenepolyaminesPETROLITE CORP·Filed 1976·Granted Sep 27, 1977·42 cites·8 claims
- 3389US3946994ASystem for producing emulsionsPETROLITE CORP·Filed 1974·Granted Mar 30, 1976·53 cites·1 claims
- 3488US4665180ASubstituted tetrahydropyrimidines and octahydrophenanthridinesPETROLITE CORP·Filed 1985·Granted May 12, 1987·24 cites·3 claims
- 3588US4552591AOil field biocide compositionPETROLITE CORP·Filed 1984·Granted Nov 12, 1985·90 cites·5 claims
- 3688US4454047AProcess of treating aqueous systemsPETROLITE CORP·Filed 1982·Granted Jun 12, 1984·45 cites·13 claims
- 3788US4343660ACorrosion inhibiting systemPETROLITE CORP·Filed 1978·Granted Aug 10, 1982·39 cites·8 claims
- 3888US3996124AFlush mounted corrosion probe assembly for pipelinePETROLITE CORP·Filed 1975·Granted Dec 7, 1976·59 cites·3 claims
- 3988US3994975ACyclohexylaminesPETROLITE CORP·Filed 1974·Granted Nov 30, 1976·26 cites·16 claims
- 4087US4418195ASilicon-containing quaternary ammonium thiazinesPETROLITE CORP·Filed 1977·Granted Nov 29, 1983·16 cites·5 claims
- 4187US4089650AUse of Diels-Alder adducts of dihydro-nitrogen heterocyclic phosphoramidates as corrosion inhibitorsPETROLITE CORP·Filed 1976·Granted May 16, 1978·26 cites·10 claims
- 4287US4060569AHydrocarbon polymersPETROLITE CORP·Filed 1975·Granted Nov 29, 1977·43 cites·39 claims
- 4387US4041056AReaction products of wax-anhydride compounds and polyaminesPETROLITE CORP·Filed 1976·Granted Aug 9, 1977·34 cites·11 claims
- 4486US5504063AAsphaltene removal composition and methodPETROLITE CORP·Filed 1994·Granted Apr 2, 1996·56 cites·37 claims
- 4586US4229309AMagnesium-containing dispersionsPETROLITE CORP·Filed 1977·Granted Oct 21, 1980·28 cites·20 claims
- 4686US4071746AAlkylbenzyl pyridinium compounds and usesPETROLITE CORP·Filed 1976·Granted Jan 31, 1978·26 cites·14 claims
- 4785US4341657AUse of quaternized derivatives of polymerized pyridines and quinolines as corrosion inhibitorsPETROLITE CORP·Filed 1981·Granted Jul 27, 1982·29 cites·14 claims
- 4885US4239546AHydrocarbon polymers to improve the hardness of waxesPETROLITE CORP·Filed 1978·Granted Dec 16, 1980·39 cites·11 claims
- 4985US4005020AParaffin removing compositionsPETROLITE CORP·Filed 1973·Granted Jan 25, 1977·63 cites·12 claims
- 5085US3965264AProcess for controlling microbiological organisms in aqueous or petroleum hydrocarbon systemsPETROLITE CORP·Filed 1974·Granted Jun 22, 1976·23 cites·12 claims
Showing the top 50 of 431 patent records by PatentIndex Score.
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