Inventor · disambiguated record
Robert A. Kleist
Also filed as: KLEIST ROBERT · KLEIST ROBERT A
30 granted patents·1 pending application·1,063 citations·filing 1975–2023
98Inventor score
Files withEXXON CHEMICAL PATENTS INC24INFINEUM INT LTD3PRINTRONIX INC3EXXON RESEARCH ENGINEERING CO1
Top patents by PatentIndex Score
31 records- 0199US5266223AEthylene alpha-olefin polymer substituted mono-and dicarboxylic acid dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1992·Granted Nov 30, 1993·142 cites·121 claims
- 0298US5229022AEthylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920)EXXON CHEMICAL PATENTS INC·Filed 1992·Granted Jul 20, 1993·136 cites·94 claims
- 0398US5017299ANovel ethylene alpha-olefin copolymer substituted Mannich base lubricant dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1988·Granted May 21, 1991·147 cites·25 claims
- 0497US5186851AEthylene alpha-olefin copolymer substituted mannich base lubricant dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1992·Granted Feb 16, 1993·91 cites·8 claims
- 0594US4177731APrinter system ribbon drive having constant ribbon speed and tensionPRINTRONIX INC·Filed 1978·Granted Dec 11, 1979·50 cites·18 claims
- 0688US5345002AEthylene alpha-olefin copolymer substituted hydroxy aromatic compoundsEXXON CHEMICAL PATENTS INC·Filed 1992·Granted Sep 6, 1994·27 cites·19 claims
- 0787US4839072APolyolefinic succinimide polyamine alkyl acetoacetate adductsEXXON CHEMICAL PATENTS INC·Filed 1987·Granted Jun 13, 1989·40 cites·59 claims
- 0886US5277833AEthylene alpha-olefin polymer substituted mono-and dicarboxylic acid lubricant dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1992·Granted Jan 11, 1994·42 cites·135 claims
- 0985US4839071APolyolefinic succinimide polyamine alkyl acetoacetate adducts as dispersants in lubricating oil compositionsEXXON CHEMICAL PATENTS INC·Filed 1987·Granted Jun 13, 1989·42 cites·37 claims
- 1084US6495496B2Hydroxy aromatic mannich base condensation products and the use thereof as soot dispersants in lubricating oil compositionsINFINEUM INT LTD·Filed 2000·Granted Dec 17, 2002·23 cites·41 claims
- 1184US5219480AEthylene alpha-olefin mannich base viscosity index improver/dispersant additives derived from amino phenols and monosecondary aminesEXXON CHEMICAL PATENTS INC·Filed 1988·Granted Jun 15, 1993·38 cites·44 claims
- 1284US4033255APrint hammer actuator for dot matrix printersPRINTRONIX INC·Filed 1975·Granted Jul 5, 1977·25 cites·9 claims
- 1380US5128056AEthylene alpha-olefin copolymer substituted amino phenol mannich base lubricant dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1991·Granted Jul 7, 1992·30 cites·46 claims
- 1479US5382698ABorated ethylene alpha-olefin copolymer substituted Mannich base lubricant dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1994·Granted Jan 17, 1995·21 cites·19 claims
- 1577US5681799AEthylene alpha-olefin/diene interpolymer-substituted carboxylic acid dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1995·Granted Oct 28, 1997·31 cites·20 claims
- 1677US4906252APolyolefinic succinimide polyamine alkyl acetoacetate adducts as dispersants in fuel oil compositionsEXXON CHEMICAL PATENTS INC·Filed 1989·Granted Mar 6, 1990·26 cites·46 claims
- 1774US6562904B2Polyalkene-substituted carboxylic acid compositions having reduced chlorine contentINFINEUM INT LTD·Filed 2001·Granted May 13, 2003·13 cites·22 claims
- 1873US5759967AEthylene α-olefin/diene interpolymer-substituted carboxylic acid dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1997·Granted Jun 2, 1998·26 cites·9 claims
- 1971US5435926AEthylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1994·Granted Jul 25, 1995·14 cites·15 claims
- 2069US4839073APolyolefinic succinimide polyamine alkyl acetoacetate and substituted acetate adducts as compatibilizer additives in lubricating oil compositionsEXXON CHEMICAL PATENTS INC·Filed 1987·Granted Jun 13, 1989·21 cites·61 claims
- 2164US5350532ABorated ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1993·Granted Sep 27, 1994·13 cites·23 claims
- 2264US5200103AEthylene alpha-olefin copolymer substituted Mannich base lubricant dispsersant additivesEXXON CHEMICAL PATENTS INC·Filed 1990·Granted Apr 6, 1993·17 cites·25 claims
- 2361US2024141156A1Functionalized C4 to C5 Olefin Polymers and Lubricant Compositions Containing SuchINFINEUM INT LTD·Filed 2023·Application pending·0 cites
- 2459US5433757AEthylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1994·Granted Jul 18, 1995·10 cites·2 claims
- 2559US4760170ASolution process for preparing metal salt esters of hydrocarbyl substituted succinic acid or anhydride and alkanolsEXXON RESEARCH ENGINEERING CO·Filed 1985·Granted Jul 26, 1988·7 cites·16 claims
- 2654US5296560AAshless dispersantsEXXON CHEMICAL PATENTS INC·Filed 1993·Granted Mar 22, 1994·10 cites·8 claims
- 2753US5225091AEthylene alpha-olefin polymer substituted thiocarboxylic acid lubricant dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1991·Granted Jul 6, 1993·9 cites·48 claims
- 2839US4839070APolyolefinic succinimide polyamine alkyl acetoacetate adduct dispersantsEXXON CHEMICAL PATENTS INC·Filed 1987·Granted Jun 13, 1989·4 cites·48 claims
- 2939US4790674AImpact printer having wear-resistant platings on hammer springs and pole piece tipsPRINTRONIX INC·Filed 1987·Granted Dec 13, 1988·4 cites·17 claims
- 3037US5433874AEthylene α-olefin copolymer substituted mannich base lubricant dispersant additivesEXXON CHEMICAL PATENTS INC·Filed 1994·Granted Jul 18, 1995·2 cites·16 claims
- 3133US5213698AAmido-amine ashless dispersantsEXXON CHEMICAL PATENTS INC·Filed 1992·Granted May 25, 1993·2 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →