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