Assignee
LUBRIZOL CORP
US·1,143 granted patents·260 pending applications·32,168 citations·filing 1971–2025
Top patents by PatentIndex Score
1,403 records- 0199US7951211B2Quaternary ammonium salt detergents for use in fuelsLUBRIZOL CORP·Filed 2006·Granted May 31, 2011·95 cites·5 claims
- 0299US7947093B2Quaternary ammonium salt detergents for use in fuelsLUBRIZOL CORP·Filed 2010·Granted May 24, 2011·57 cites·5 claims
- 0399US4798684ANitrogen containing anti-oxidant compositionsLUBRIZOL CORP·Filed 1987·Granted Jan 17, 1989·242 cites·42 claims
- 0499US4136043AHomogeneous compositions prepared from dimercaptothiadiazolesLUBRIZOL CORP·Filed 1974·Granted Jan 23, 1979·139 cites·17 claims
- 0598US11214756B2Lubricant compositions for direct injection engineLUBRIZOL CORP·Filed 2020·Granted Jan 4, 2022·16 cites·8 claims
- 0698US7727943B2Titanium compounds and complexes as additives in lubricantsLUBRIZOL CORP·Filed 2006·Granted Jun 1, 2010·124 cites·12 claims
- 0798US6559105B2Lubricant compositions containing ester-substituted hindered phenol antioxidantsLUBRIZOL CORP·Filed 2001·Granted May 6, 2003·232 cites·36 claims
- 0898US6451745B1High boron formulations for fluids continuously variable transmissionsLUBRIZOL CORP·Filed 2000·Granted Sep 17, 2002·108 cites·38 claims
- 0998US6372696B1Traction fluid formulationLUBRIZOL CORP·Filed 1999·Granted Apr 16, 2002·155 cites·37 claims
- 1098US6200936B1Salicyclic calixarenes and their use as lubricant additivesLUBRIZOL CORP·Filed 1998·Granted Mar 13, 2001·162 cites·11 claims
- 1198US6165235ALow chlorine content compositions for use in lubricants and fuelsLUBRIZOL CORP·Filed 1997·Granted Dec 26, 2000·287 cites·17 claims
- 1298US5705458AAdditive compositions for lubricants and functional fluidsLUBRIZOL CORP·Filed 1996·Granted Jan 6, 1998·277 cites·41 claims
- 1398US5230714AHigh molecular weight nitrogen-containing condensates and fuels and lubricants containing sameLUBRIZOL CORP·Filed 1992·Granted Jul 27, 1993·123 cites·23 claims
- 1498US4844756AWater-in-oil emulsionsLUBRIZOL CORP·Filed 1987·Granted Jul 4, 1989·128 cites·64 claims
- 1598US4741848ABoron-containing compositions, and lubricants and fuels containing sameLUBRIZOL CORP·Filed 1986·Granted May 3, 1988·146 cites·34 claims
- 1698US4708753AWater-in-oil emulsionsLUBRIZOL CORP·Filed 1986·Granted Nov 24, 1987·186 cites·51 claims
- 1798US4454059ANitrogenous dispersants, lubricants and concentrates containing said nitrogenous dispersantsLUBRIZOL CORP·Filed 1981·Granted Jun 12, 1984·279 cites·15 claims
- 1898US4357250ANitrogen-containing terpolymer-based compositions useful as multi-purpose lubricant additivesLUBRIZOL CORP·Filed 1981·Granted Nov 2, 1982·105 cites·30 claims
- 1998US4320019AMulti-purpose additive compositions and concentrates containing sameLUBRIZOL CORP·Filed 1978·Granted Mar 16, 1982·186 cites·52 claims
- 2098US4266945AMolybdenum-containing compositions and lubricants and fuels containing themLUBRIZOL CORP·Filed 1979·Granted May 12, 1981·97 cites·21 claims
- 2198US4191659ASulfurized compositionsLUBRIZOL CORP·Filed 1978·Granted Mar 4, 1980·186 cites·45 claims
- 2298US4119549ASulfurized compositionsLUBRIZOL CORP·Filed 1977·Granted Oct 10, 1978·166 cites·43 claims
- 2398US4110349ATwo-step method for the alkenylation of maleic anhydride and related compoundsLUBRIZOL CORP·Filed 1976·Granted Aug 29, 1978·185 cites·8 claims
- 2498US3980569ADispersants and process for their preparationLUBRIZOL CORP·Filed 1975·Granted Sep 14, 1976·190 cites·28 claims
- 2597US10669505B2Lubricant compositions for direct injection enginesLUBRIZOL CORP·Filed 2019·Granted Jun 2, 2020·15 cites·9 claims
- 2697US8557755B2Lubricating composition containing an antiwear agentLUBRIZOL CORP·Filed 2013·Granted Oct 15, 2013·18 cites·16 claims
- 2797US8530395B1Lubricating composition containing an antiwear agentLUBRIZOL CORP·Filed 2013·Granted Sep 10, 2013·19 cites·17 claims
- 2897US7906470B2Quaternary ammonium salt of a Mannich compoundLUBRIZOL CORP·Filed 2006·Granted Mar 15, 2011·38 cites·10 claims
- 2997US7790661B2Dispersant viscosity modifiers containing aromatic aminesLUBRIZOL CORP·Filed 2005·Granted Sep 7, 2010·109 cites·23 claims
- 3097US7615521B2Mixed dispersants for lubricantsLUBRIZOL CORP·Filed 2004·Granted Nov 10, 2009·114 cites·28 claims
- 3197US6843916B2Slow release lubricant additives gelLUBRIZOL CORP·Filed 2002·Granted Jan 18, 2005·140 cites·3 claims
- 3297US6573223B1Lubricating compositions with good thermal stability and demulsibility propertiesLUBRIZOL CORP·Filed 2002·Granted Jun 3, 2003·70 cites·16 claims
- 3397US6530964B2Continuous process for making an aqueous hydrocarbon fuelLUBRIZOL CORP·Filed 2000·Granted Mar 11, 2003·128 cites·25 claims
- 3497US6310009B1Lubricating oil compositions containing saligenin derivativesLUBRIZOL CORP·Filed 2001·Granted Oct 30, 2001·102 cites·36 claims
- 3597US5773391AHigh oleic polyol esters, compositions and lubricants, functional fluids and greases containing the sameLUBRIZOL CORP·Filed 1997·Granted Jun 30, 1998·154 cites·29 claims
- 3697US5338471APour point depressants for industrial lubricants containing mixtures of fatty acid esters and vegetable oilsLUBRIZOL CORP·Filed 1993·Granted Aug 16, 1994·118 cites·69 claims
- 3797US5084197AAntiemulsion/antifoam agent for use in oilsLUBRIZOL CORP·Filed 1990·Granted Jan 28, 1992·257 cites·8 claims
- 3897US5053152AHigh molecular weight nitrogen-containing condensates and fuels and lubricants containing sameLUBRIZOL CORP·Filed 1989·Granted Oct 1, 1991·72 cites·40 claims
- 3997US4952328ALubricating oil compositionsLUBRIZOL CORP·Filed 1988·Granted Aug 28, 1990·115 cites·68 claims
- 4097US4792410ALubricant composition suitable for manual transmission fluidsLUBRIZOL CORP·Filed 1986·Granted Dec 20, 1988·148 cites·17 claims
- 4197US4728578ACompositions containing basic metal salts and/or non-Newtonian colloidal disperse systems and vinyl aromatic containing polymersLUBRIZOL CORP·Filed 1986·Granted Mar 1, 1988·154 cites·108 claims
- 4297US4708809ATwo-cycle engine oils containing alkyl phenolsLUBRIZOL CORP·Filed 1982·Granted Nov 24, 1987·91 cites·26 claims
- 4397US4654403APolymeric compositions comprising olefin polymer and nitrogen containing ester of a carboxy interpolymerLUBRIZOL CORP·Filed 1986·Granted Mar 31, 1987·109 cites·29 claims
- 4497US4447348ACarboxylic solubilizer/surfactant combinations and aqueous compositions containing sameLUBRIZOL CORP·Filed 1982·Granted May 8, 1984·89 cites·88 claims
- 4597US4368133AAqueous systems containing nitrogen-containing, phosphorous-free carboxylic solubilizer/surfactant additivesLUBRIZOL CORP·Filed 1981·Granted Jan 11, 1983·91 cites·38 claims
- 4697US4326972AConcentrates, lubricant compositions and methods for improving fuel economy of internal combustion engineLUBRIZOL CORP·Filed 1978·Granted Apr 27, 1982·118 cites·52 claims
- 4797US4289635AProcess for preparing molybdenum-containing compositions useful for improved fuel economy of internal combustion enginesLUBRIZOL CORP·Filed 1980·Granted Sep 15, 1981·101 cites·82 claims
- 4897US4237022ATartarimides and lubricants and fuels containing the sameLUBRIZOL CORP·Filed 1979·Granted Dec 2, 1980·99 cites·39 claims
- 4997US4234435ANovel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same, and processes for their preparationLUBRIZOL CORP·Filed 1979·Granted Nov 18, 1980·1.9k cites·65 claims
- 5097US4100082ALubricants containing amino phenol-detergent/dispersant combinationsLUBRIZOL CORP·Filed 1976·Granted Jul 11, 1978·270 cites·23 claims
Showing the top 50 of 1,403 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when LUBRIZOL CORP files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →