Inventor · disambiguated record

John R. Hagadorn

Also filed as: HAGADORN JOHN R

109 granted patents·18 pending applications·686 citations·filing 2008–2023

99Inventor score

Technology areasC08F C07F B01J C10N C08L

Files withEXXONMOBIL CHEMICAL PATENTS INC85 EXXONMOBIL CHEM PATENTS INC19 HAGADORN JOHN R12 HOLTCAMP MATTHEW W6 CHEVRON ORONITE CO1

Top patents by PatentIndex Score

127 records

0198US11214634B2Lewis base catalysts and methods thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Granted Jan 4, 2022·7 cites·48 claims
0298US10669414B2Propylene-based elastomers for roofing compositions and methods for preparing the sameEXXONMOBIL CHEMICAL PATENTS INC·Filed 2017·Granted Jun 2, 2020·23 cites·19 claims
0398US7973116B2Pyridyldiamido transition metal complexes, production and use thereofEXXONMOBIL CHEM PATENTS INC·Filed 2008·Granted Jul 5, 2011·82 cites·20 claims
0497US11414436B2Non-coordinating anion type activators containing cation having large alkyl groupsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Aug 16, 2022·8 cites·9 claims
0597US11254763B2Transition metal bis(phenolate) complexes and their use as catalysts for olefin polymerizationEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Granted Feb 22, 2022·11 cites·35 claims
0697US11041031B2Non-coordinating anion type activators containing cation having branched alkyl groupsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Jun 22, 2021·10 cites·18 claims
0797US10280240B2Metallocene catalyst compositions and polymerization process therewithEXXONMOBIL CHEMICAL PATENTS INC·Filed 2017·Granted May 7, 2019·10 cites·36 claims
0897US8669326B2Amine functionalized polyolefin and methods for preparation thereofHAGADORN JOHN R·Filed 2011·Granted Mar 11, 2014·24 cites·24 claims
0997US8426659B2Vinyl terminated higher olefin polymers and methods to produce thereofHOLTCAMP MATTHEW W·Filed 2011·Granted Apr 23, 2013·28 cites·23 claims
1097US8399724B2Vinyl terminated higher olefin copolymers and methods to produce thereofCROWTHER DONNA J·Filed 2011·Granted Mar 19, 2013·26 cites·11 claims
1196US11859032B2Ethylene-a-olefin-diene elastomers and methods of making themEXXONMOBIL CHEMICAL PATENTS INC·Filed 2021·Granted Jan 2, 2024·2 cites·14 claims
1296US11584707B2Non-coordinating anion type activators containing cation having aryldiamine groups and uses thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Granted Feb 21, 2023·4 cites·20 claims
1396US11248070B2Lewis base catalysts and methods thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Granted Feb 15, 2022·6 cites·48 claims
1496US11225539B2Supported transition metal bis(phenolate) complexes and their use as catalysts for olefin polymerizationEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Granted Jan 18, 2022·7 cites·36 claims
1596US11203654B2Bis(aryl phenolate) lewis base catalysts and methods thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2020·Granted Dec 21, 2021·5 cites·50 claims
1696US9745327B2Bisphenolate transition metal complexes, production and use thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2016·Granted Aug 29, 2017·9 cites·33 claims
1796US9260552B2Process to produce polymers from pyridyldiamido transition metal complexes and use thereofEXXONMOBIL CHEM PATENTS INC·Filed 2014·Granted Feb 16, 2016·14 cites·40 claims
1896US9120879B2Supported Salan catalystsEXXONMOBIL CHEM PATENTS INC·Filed 2013·Granted Sep 1, 2015·18 cites·36 claims
1996US8940839B2Diblock copolymers prepared by cross metathesisHAGADORN JOHN R·Filed 2011·Granted Jan 27, 2015·19 cites·12 claims
2096US8841394B2Vinyl terminated higher olefin copolymers and methods to produce thereofEXXONMOBIL CHEM PATENTS INC·Filed 2013·Granted Sep 23, 2014·19 cites·6 claims
2196US8283419B2Olefin functionalization by metathesis reactionHAGADORN JOHN R·Filed 2009·Granted Oct 9, 2012·30 cites·75 claims
2296US8237003B2Metathesis catalyst and process for use thereofHOLTCAMP MATTHEW W·Filed 2010·Granted Aug 7, 2012·25 cites·36 claims
2396US8063232B2Metathesis catalyst and process for use thereofHAGADORN JOHN R·Filed 2010·Granted Nov 22, 2011·18 cites·32 claims
2495US10894841B2Processes for producing high propylene content PEDM having low glass transition temperatures using tetrahydroindacenyl catalyst systemsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Jan 19, 2021·5 cites·25 claims
2595US10676551B2Branched ethylene copolymers produced via use of vinyl transfer agents and processes for production thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2018·Granted Jun 9, 2020·5 cites·24 claims
2695US9315593B2Catalyst systems comprising pyridyldiamido transition metal complexes and chain transfer agent and use thereofEXXONMOBIL CHEM PATENTS INC·Filed 2014·Granted Apr 19, 2016·15 cites·36 claims
2795US8841397B2Vinyl terminated higher olefin polymers and methods to produce thereofEXXONMOBIL CHEM PATENTS INC·Filed 2012·Granted Sep 23, 2014·16 cites·22 claims
2895US8710163B2Pyridyldiamido transition metal complexes, production and use thereofHAGADORN JOHN R·Filed 2011·Granted Apr 29, 2014·15 cites·35 claims
2994US11117908B2Process to make non-coordinating anion type activators in aliphatic and alicyclic hydrocarbon solventsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Sep 14, 2021·4 cites·30 claims
3094US10899853B2Processes for producing high propylene content PEDM using tetrahydroindacenyl catalyst systemsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Jan 26, 2021·4 cites·31 claims
3194US10626200B2Branched EPDM polymers produced via use of vinyl transfer agents and processes for production thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2018·Granted Apr 21, 2020·5 cites·29 claims
3294US8674040B2Pyridyldiamido transition metal complexes, production and use thereofHAGADORN JOHN R·Filed 2011·Granted Mar 18, 2014·17 cites·29 claims
3394US8394902B2Pyridyldiamido transition metal complexes, production and use thereofHAGADORN JOHN R·Filed 2011·Granted Mar 12, 2013·31 cites·26 claims
3493US11008449B2Bimodal ethylene, alpha-olefin, and diene polymers using dual organometallic catalystsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2018·Granted May 18, 2021·4 cites·25 claims
3593US10208140B2Quinolinyldiamido transition metal complexes, production and use thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2017·Granted Feb 19, 2019·8 cites·44 claims
3693US9249238B2Reversible chain-transfer in polyolefin polymerization with pyridyldiamide catalystsEXXONMOBIL CHEM PATENTS INC·Filed 2014·Granted Feb 2, 2016·14 cites·64 claims
3793US9102773B2Process for controlling molecular weight of polyolefins prepared using pyridyl diamide catalyst systemsEXXONMOBIL CHEM PATENTS INC·Filed 2014·Granted Aug 11, 2015·10 cites·43 claims
3892US10829569B2Polymers produced via use of vinyl transfer agentsEXXONMOBIL CHEMICAL PATENTS INC·Filed 2016·Granted Nov 10, 2020·5 cites·30 claims
3992US10676547B2Aluminum alkyls with pendant olefins on claysEXXONMOBIL CHEMICAL PATENTS INC·Filed 2016·Granted Jun 9, 2020·5 cites·47 claims
4091US11390733B2Elastomeric formulations comprising branched EPDM polymersEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Jul 19, 2022·2 cites·19 claims
4191US9321858B2Pyridyldiamide metal catalysts and processes to produce polyolefinsEXXONMOBIL CHEM PATENTS INC·Filed 2014·Granted Apr 26, 2016·16 cites·22 claims
4290US10533063B2Supported catalyst systems and processes for use thereofEXXONMOBIL CHEMICAL PATENTS INC·Filed 2016·Granted Jan 14, 2020·3 cites·22 claims
4390US9290519B2Pyridyldiamido transition metal complexes, production and use thereofEXXONMOBIL CHEM PATENTS INC·Filed 2014·Granted Mar 22, 2016·8 cites·27 claims
4489US11046793B2Silica quenching agents for use in polymerization processEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Jun 29, 2021·2 cites·12 claims
4589US11041034B2Ethylene-a-olefin-diene elastomers and methods of making themEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Jun 22, 2021·2 cites·11 claims
4689US8809563B2Metathesis catalyst and process for use thereofHOLTCAMP MATTHEW W·Filed 2012·Granted Aug 19, 2014·9 cites·38 claims
4789US8754170B2Amphiphilic block polymers prepared by alkeneEXXONMOBIL CHEM PATENTS INC·Filed 2013·Granted Jun 17, 2014·18 cites·20 claims
4887US11466149B2Preparation of bimodal rubber, thermoplastic vulcanizates, and articles made therefromEXXONMOBIL CHEMICAL PATENTS INC·Filed 2019·Granted Oct 11, 2022·2 cites·30 claims
4987US9181360B2Polymers prepared by ring opening / cross metathesisHOLTCAMP MATTHEW W·Filed 2011·Granted Nov 10, 2015·6 cites·63 claims
5086US10654949B2High molecular weight functionalized olefin copolymer quenching agentEXXONMOBIL CHEMICAL PATENTS INC·Filed 2018·Granted May 19, 2020·2 cites·20 claims

Showing the top 50 of 127 patent records by PatentIndex Score.

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →