Inventor · disambiguated record
Robert O. Hagerty
Also filed as: HAGERTY ROBERT O · HAGERTY ROBERT OLDS
63 granted patents·3 pending applications·857 citations·filing 1979–2017
99Inventor score
Files withUNIVATION TECH LLC20EXXONMOBIL CHEM PATENTS INC16MOBIL OIL CORP16HAGERTY ROBERT O4APECETCHE MARIA A2
Top patents by PatentIndex Score
66 records- 0197US7122607B2Polymerization processUNIVATION TECH LLC·Filed 2005·Granted Oct 17, 2006·72 cites·65 claims
- 0296US7300987B2Polymerization processUNIVATION TECH LLC·Filed 2006·Granted Nov 27, 2007·37 cites·57 claims
- 0395US7858719B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Dec 28, 2010·22 cites·64 claims
- 0494US7683140B2Method for determining temperature value indicative of resin stickiness from data generated by polymerization reaction monitoringUNIVATION TECH LLC·Filed 2006·Granted Mar 23, 2010·22 cites·24 claims
- 0592US8433443B2Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity eventsHAGERTY ROBERT O·Filed 2008·Granted Apr 30, 2013·21 cites·30 claims
- 0692US7351779B2Polymerization process and reactor systemEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Apr 1, 2008·16 cites·44 claims
- 0792US7342079B2Polymerization process and reactor systemEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Mar 11, 2008·17 cites·60 claims
- 0890US7774178B2Methods for on-line determination of degree of resin stickiness using a model for depression of melt initiation temperatureUNIVATION TECH LLC·Filed 2007·Granted Aug 10, 2010·13 cites·59 claims
- 0990US7423103B2Low fouling and high activity polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Sep 9, 2008·9 cites·43 claims
- 1090US4547555AMethod for rapid kill gas injection to gas phase polymerization reactors during power failuresMOBIL OIL CORP·Filed 1983·Granted Oct 15, 1985·42 cites·16 claims
- 1188US6995217B2Processes for transitioning between metallocene and Ziegler-Natta polymerization catalystsUNIVATION TECH LLC·Filed 2005·Granted Feb 7, 2006·10 cites·6 claims
- 1287US7985811B2Method for controlling sheeting in gas phase reactorsUNIVATION TECH LLC·Filed 2008·Granted Jul 26, 2011·9 cites·27 claims
- 1387US7799882B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Sep 21, 2010·9 cites·63 claims
- 1487US7449530B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Nov 11, 2008·9 cites·52 claims
- 1587US6831140B2Static measurement and detection in a gas phase polyethylene reactorUNIVATION TECH LLC·Filed 2003·Granted Dec 14, 2004·26 cites·12 claims
- 1687US4834947AReactor system for rapid kill gas injection to gas phase polymerization reactorsMOBIL OIL CORP·Filed 1987·Granted May 30, 1989·48 cites·3 claims
- 1786US4732882ACatalyst composition for polymerizing alpha-olefinsMOBIL OIL CORP·Filed 1986·Granted Mar 22, 1988·48 cites·56 claims
- 1885US7728084B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Jun 1, 2010·8 cites·54 claims
- 1985US7507780B2Polymerization processUNIVATION TECH LLC·Filed 2007·Granted Mar 24, 2009·18 cites·25 claims
- 2084US8598283B2Methods for operating a polymerization reactorMARKEL ERIC J·Filed 2011·Granted Dec 3, 2013·7 cites·19 claims
- 2184US7799876B2Method and apparatus for controlling static charge in polyolefin reactorsUNIVATION TECH LLC·Filed 2007·Granted Sep 21, 2010·7 cites·30 claims
- 2283US7910668B2Method for on-line determination of degree or onset of resin stickiness using acoustic dataUNIVATION TECH LLC·Filed 2010·Granted Mar 22, 2011·4 cites·20 claims
- 2383US7696289B2Low molecular weight induced condensing agentsEXXONMOBIL CHEM PATENTS INC·Filed 2006·Granted Apr 13, 2010·14 cites·44 claims
- 2482US8273834B2Methods for determining temperature value indicative of resin stickiness from data generated by polymerization reaction monitoringMARKEL ERIC J·Filed 2007·Granted Sep 25, 2012·6 cites·19 claims
- 2581US8148481B2Method for seed bed treatment for a polymerization reactionHUSSEIN F DAVID·Filed 2009·Granted Apr 3, 2012·5 cites·19 claims
- 2681US7491776B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Feb 17, 2009·5 cites·56 claims
- 2781US6548610B2Method and apparatus for reducing static charges during polymerization of olefin polymersUNIVATION TECH LLC·Filed 2001·Granted Apr 15, 2003·25 cites·9 claims
- 2880US4888318ACatalyst composition for polymerizing alpha-olefinsMOBIL OIL CORP·Filed 1987·Granted Dec 19, 1989·34 cites·37 claims
- 2979US7662892B2Impact copolymersEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Feb 16, 2010·4 cites·44 claims
- 3076US7754834B2Bulk density promoting agents in a gas-phase polymerization process to achieve a bulk particle densityUNIVATION TECH LLC·Filed 2008·Granted Jul 13, 2010·3 cites·22 claims
- 3176US4666999AMethod and reactor system for rapid kill gas injection to gas phase polymerization reactorsMOBIL OIL CORP·Filed 1985·Granted May 19, 1987·31 cites·14 claims
- 3274US5514634AHigh activity polyethylene catalystsMOBIL OIL CORP·Filed 1994·Granted May 7, 1996·33 cites·17 claims
- 3371US8088870B2Methods for applying solution catalysts to reactor surfacesHAGERTY ROBERT O·Filed 2008·Granted Jan 3, 2012·2 cites·32 claims
- 3471US6905654B2Method and apparatus for reducing static charges during polymerization of olefin polymersUNIVATION TECH LLC·Filed 2003·Granted Jun 14, 2005·12 cites·7 claims
- 3571US5055533AProcess for polymerizing alpha-olefins with trimethylaluminum-activated catalystMOBIL OIL CORP·Filed 1989·Granted Oct 8, 1991·22 cites·14 claims
- 3670US8383739B2Systems and methods for monitoring a polymerization reactionUNIVATION TECH LLC·Filed 2010·Granted Feb 26, 2013·1 cites·23 claims
- 3770US7947797B2Method for operating a gas-phase reactor at or near maximum production rates while controlling polymer stickinessUNIVATION TECH LLC·Filed 2005·Granted May 24, 2011·2 cites·14 claims
- 3870US7700699B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Apr 20, 2010·2 cites·63 claims
- 3970US5139986ACatalyst composition for production of linear low-density ethylene-hexene copolymers and films thereofMOBIL OIL CORP·Filed 1991·Granted Aug 18, 1992·22 cites·18 claims
- 4068US8378040B2Methods for cleaning the distributor plate in a fluidized bed reactor systemUNIVATION TECH LLC·Filed 2009·Granted Feb 19, 2013·2 cites·24 claims
- 4168US4285602AMethod and apparatus for the blending of granular materialsUNION CARBIDE CORP·Filed 1979·Granted Aug 25, 1981·27 cites·4 claims
- 4267US4666998AClosed loop recycle of vent gas in polymerization processMOBIL OIL CORP·Filed 1986·Granted May 19, 1987·17 cites·16 claims
- 4366US7981984B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Jul 19, 2011·1 cites·56 claims
- 4466US7414100B2Polymerization processEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Aug 19, 2008·1 cites·25 claims
- 4564US6949612B2Processes for transitioning between metallocene and Ziegler-Natta polymerization catalystsUNIVATION TECH LLC·Filed 2003·Granted Sep 27, 2005·17 cites·14 claims
- 4663US5688865AProcess and system for preventing pressure tap fouling in tandem polymerization reactorsMOBIL OIL CORP·Filed 1992·Granted Nov 18, 1997·22 cites·8 claims
- 4762US8876942B2Systems and methods for removing entrained particulates from gas streams, and reactor systemsFORCE RANDALL L·Filed 2008·Granted Nov 4, 2014·1 cites·12 claims
- 4861US4675369ACatalyst composition for polymerizing alpha-olefins at low reactants partial pressuresMOBIL OIL CORP·Filed 1985·Granted Jun 23, 1987·13 cites·25 claims
- 4960US4562169AAlpha-olefins polymerization catalyst of high productivityMOBIL OIL CORP·Filed 1984·Granted Dec 31, 1985·13 cites·40 claims
- 5059US11230614B2Methods for making polyethylene polymersEXXONMOBIL CHEMICAL PATENTS INC·Filed 2017·Granted Jan 25, 2022·0 cites·14 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →