Inventor · disambiguated record
Eric J. Markel
Also filed as: MARKEL ERIC J · MARKEL ERIC JOHN
40 granted patents·3 pending applications·1,717 citations·filing 1997–2019
98Inventor score
Files withUNIVATION TECH LLC12EXXONMOBIL CHEM PATENTS INC9EXXON CHEMICAL PATENTS INC7MARKEL ERIC J5KOLB RAINER2
Top patents by PatentIndex Score
43 records- 0198US6225432B1Branched polypropylene compositionsEXXON CHEMICAL PATENTS INC·Filed 1999·Granted May 1, 2001·163 cites·28 claims
- 0298US6147180AThermoplastic elastomer compositions from branched olefin copolymersEXXON CHEMICAL PATENTS INC·Filed 1998·Granted Nov 14, 2000·271 cites·7 claims
- 0397US8476392B2Polymerization processes using metallocene catalysts, their polymer products and end usesKOLB RAINER·Filed 2010·Granted Jul 2, 2013·33 cites·20 claims
- 0497US6444773B1Preparation of vinyl-containing macromersEXXONMOBIL CHEM PATENTS INC·Filed 2000·Granted Sep 3, 2002·76 cites·18 claims
- 0597US6342574B1Propylene polymers incorporating macromersEXXONMOBIL CHEM PATENTS INC·Filed 2001·Granted Jan 29, 2002·78 cites·11 claims
- 0697US6184327B1Elastomeric propylene polymersEXXON CHEMICAL PATENTS INC·Filed 1998·Granted Feb 6, 2001·115 cites·14 claims
- 0796US6750307B2Propylene polymers incorporating polyethylene macromersEXXON MOBIL CHEM PATENTS INC·Filed 2002·Granted Jun 15, 2004·63 cites·44 claims
- 0896US6197910B1Propylene polymers incorporating macromersEXXON CHEMICAL PATENTS INC·Filed 1998·Granted Mar 6, 2001·105 cites·16 claims
- 0996US6117962AVinyl-containing stereospecific polypropylene macromersEXXON CHEMICAL PATENTS INC·Filed 1998·Granted Sep 12, 2000·131 cites·20 claims
- 1096US6114457AHigh melt strength polyethylene compositionsEXXON CHEMICAL PATENTS INC·Filed 1998·Granted Sep 5, 2000·219 cites·9 claims
- 1195US8497330B2Methods for polymerization using spray dried and slurried catalystHUSSEIN F DAVID·Filed 2010·Granted Jul 30, 2013·24 cites·16 claims
- 1295US8084560B2Polymerization processes using metallocene catalysts, their polymer products and end usesKOLB RAINER·Filed 2007·Granted Dec 27, 2011·22 cites·14 claims
- 1394US7683140B2Method 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
- 1494US6569965B2Branched semi-crystalline high-C3 ethylene-propylene polymer compositionsEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted May 27, 2003·44 cites·16 claims
- 1594US6423793B1Elastomeric propylene polymersEXXONMOBIL CHEM PATENTS INC·Filed 2000·Granted Jul 23, 2002·45 cites·18 claims
- 1692US8433443B2Method 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
- 1792US6573350B1Branched semi-crystalline high-C3 ethylene-propylene compositionsEXXONMOBIL CHEM PATENTS INC·Filed 1999·Granted Jun 3, 2003·66 cites·11 claims
- 1891US6660809B1Propylene polymers incorporating polyethylene macromersEXXONMOBIL CHEM PATENTS INC·Filed 1998·Granted Dec 9, 2003·54 cites·67 claims
- 1991US6555635B2Preparation of vinyl-containing macromersEXXONMOBIL CHEM PATENTS INC·Filed 2001·Granted Apr 29, 2003·33 cites·6 claims
- 2090US7774178B2Methods 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
- 2190US6774191B2Propylene polymers incorporating polyethylene macromersEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Aug 10, 2004·27 cites·73 claims
- 2289US10207237B2Systems and methods for measuring particle accumulation on reactor surfacesUNIVATION TECH LLC·Filed 2017·Granted Feb 19, 2019·2 cites·14 claims
- 2388US7005491B2Propylene diene copolymerized polymersEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Feb 28, 2006·27 cites·35 claims
- 2484US8598283B2Methods for operating a polymerization reactorMARKEL ERIC J·Filed 2011·Granted Dec 3, 2013·7 cites·19 claims
- 2584US7799876B2Method and apparatus for controlling static charge in polyolefin reactorsUNIVATION TECH LLC·Filed 2007·Granted Sep 21, 2010·7 cites·30 claims
- 2683US7910668B2Method 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
- 2782US8273834B2Methods 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
- 2881US8742041B2Processes for the polymerization of olefins with extracted metal carboxylate saltsPEQUENO R ERIC·Filed 2011·Granted Jun 3, 2014·5 cites·20 claims
- 2979US8039562B2Method for seed bed treatment before a polymerization reactionUNIVATION TECH LLC·Filed 2009·Granted Oct 18, 2011·3 cites·51 claims
- 3071US7790816B2Method of maintaining heat transfer capacity in a polymerization reaction systemUNIVATION TECH LLC·Filed 2007·Granted Sep 7, 2010·2 cites·86 claims
- 3170US8383739B2Systems and methods for monitoring a polymerization reactionUNIVATION TECH LLC·Filed 2010·Granted Feb 26, 2013·1 cites·23 claims
- 3268US8378040B2Methods for cleaning the distributor plate in a fluidized bed reactor systemUNIVATION TECH LLC·Filed 2009·Granted Feb 19, 2013·2 cites·24 claims
- 3368US5942587AEthylene polymers with a norbornene comonomer for LLDPE like resins of improved toughness and processibility for film productionEXXON CHEMICAL PATENTS INC·Filed 1997·Granted Aug 24, 1999·25 cites·38 claims
- 3466US8441250B2Method and apparatus for monitoring electrical properties of polymerization reactor wall filmMARKEL ERIC J·Filed 2010·Granted May 14, 2013·1 cites·19 claims
- 3562US11396561B2Controlling a polymerization reactionUNIVATION TECH LLC·Filed 2019·Granted Jul 26, 2022·0 cites·10 claims
- 3653US11186654B2Methods for controlling start up conditions in polymerization processesEXXONMOBIL CHEMICAL PATENTS INC·Filed 2017·Granted Nov 30, 2021·0 cites·17 claims
- 3753US7807455B2Method to confer cell culture replication activity to different Hepatitis C virus isolatesMERCK SHARP & DOHME·Filed 2004·Granted Oct 5, 2010·0 cites·18 claims
- 3852US7808227B2Systems and methods for detecting impurities in reactor systemsUNIVATION TECH LLC·Filed 2007·Granted Oct 5, 2010·0 cites·57 claims
- 3951US2013115708A1Systems and Methods for Measuring Particle Accumulation on Reactor SurfacesMARKEL ERIC J·Filed 2011·Application pending·0 cites
- 4051US2007073012A1Method for seed bed treatment before a polymerization reactionPANNELL RICHARD B·Filed 2005·Application pending·0 cites
- 4148US7754830B2Polymerization reaction monitoring with determination of induced condensing agent concentration for preventing discontinuity eventsUNIVATION TECH LLC·Filed 2009·Granted Jul 13, 2010·0 cites·64 claims
- 4243US8722818B2Method and apparatus for monitoring and restoring electrical properties of polymerization reactor wall filmMARKEL ERIC J·Filed 2011·Granted May 13, 2014·0 cites·14 claims
- 4342US2009216481A1Method and System for Assessing Reactor Fluidization Quality and Operability From Frequency Spectrum of Temperature DataUNIVATION TECHNOLGIES LLC·Filed 2006·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Eric J. Markel files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →