Inventor · disambiguated record
John F. Szul
Also filed as: SZUL JOHN · SZUL JOHN F · SZUL JOHN FRANCIS
68 granted patents·16 pending applications·2,536 citations·filing 1999–2022
99Inventor score
Top patents by PatentIndex Score
84 records- 0199US6689847B2Polymerization processUNIVATION TECH LLC·Filed 2001·Granted Feb 10, 2004·211 cites·22 claims
- 0298US7179876B2High tear films from hafnocene catalyzed polyethylenesUNIVATION TECH LLC·Filed 2005·Granted Feb 20, 2007·135 cites·19 claims
- 0398US7172816B2High tear films from hafnocene catalyzed polyethylenesUNIVATION TECH LLC·Filed 2005·Granted Feb 6, 2007·58 cites·8 claims
- 0498US7078467B1Single catalyst low, medium and high density polyethylenesUNIVATION TECH LLC·Filed 2005·Granted Jul 18, 2006·83 cites·5 claims
- 0598US6894128B2Catalyst composition, method of polymerization, and polymer therefromUNIVATION TECH LLC·Filed 2003·Granted May 17, 2005·106 cites·18 claims
- 0698US6841631B2Catalyst composition, method of polymerization, and polymer therefromUNIVATION TECH LLC·Filed 2003·Granted Jan 11, 2005·107 cites·46 claims
- 0798US6828394B2Mixed metallocene catalyst systems containing a poor comonomer incorporator and a good comonomer incorporatorUNIVATION TECH LLC·Filed 2002·Granted Dec 7, 2004·103 cites·78 claims
- 0898US6608149B2Polymerization processUNIVATION TECH LLC·Filed 2000·Granted Aug 19, 2003·76 cites·11 claims
- 0998US6605675B2Polymerization processUNIVATION TECH LLC·Filed 2000·Granted Aug 12, 2003·75 cites·5 claims
- 1098US6340730B1Multiple catalyst systemUNIVATION TECH LLC·Filed 1999·Granted Jan 22, 2002·187 cites·27 claims
- 1198US6274684B1Catalyst composition, method of polymerization, and polymer therefromUNIVATION TECH LLC·Filed 1999·Granted Aug 14, 2001·213 cites·21 claims
- 1297US7157531B2Methods for producing polymers with control over composition distributionUNIVATION TECH LLC·Filed 2004·Granted Jan 2, 2007·113 cites·13 claims
- 1397US6956088B2Polyethylene films with improved physical propertiesUNIVATION TECH LLC·Filed 2002·Granted Oct 18, 2005·135 cites·58 claims
- 1497US6936675B2High tear films from hafnocene catalyzed polyethylenesUNIVATION TECH LLC·Filed 2003·Granted Aug 30, 2005·115 cites·42 claims
- 1597US6534604B2Catalyst composition, method of polymerization, and polymer therefromUNIVATION TECH LLC·Filed 2001·Granted Mar 18, 2003·58 cites·15 claims
- 1697US6489408B2Polymerization processUNIVATION TECH LLC·Filed 2000·Granted Dec 3, 2002·118 cites·18 claims
- 1796US10941284B2Polyethylene compositionUNIVATION TECH LLC·Filed 2017·Granted Mar 9, 2021·8 cites·9 claims
- 1896US8227552B2Methods of controlling polymer propertiesKOLB RAINER·Filed 2011·Granted Jul 24, 2012·25 cites·26 claims
- 1996US7141632B2Mixed metallocene catalyst systems containing a poor comonomer incorporator and a good comonomer incorporatorUNIVATION TECH LLC·Filed 2004·Granted Nov 28, 2006·71 cites·12 claims
- 2095US11142597B2Polyethylene compositionUNIVATION TECH LLC·Filed 2017·Granted Oct 12, 2021·6 cites·12 claims
- 2194US11203653B2Bimodal polyethyleneUNIVATION TECH LLC·Filed 2018·Granted Dec 21, 2021·7 cites·13 claims
- 2294US8497329B2Methods of controlling polymer propertiesKOLB RAINER·Filed 2008·Granted Jul 30, 2013·26 cites·21 claims
- 2394US7300988B2Single catalyst low, medium and high density polyethylenesUNIVATION TECH LLC·Filed 2007·Granted Nov 27, 2007·19 cites·19 claims
- 2493US12338301B2Bimodal catalyst systemsDOW GLOBAL TECHNOLOGIES LLC·Filed 2020·Granted Jun 24, 2025·2 cites·13 claims
- 2593US7754840B2Bimodal high density polyethlyeneUNIVATION TECH LLC·Filed 2003·Granted Jul 13, 2010·31 cites·17 claims
- 2693US7223825B2Single catalyst low, medium and high density polyethylenesUNIVATION TECH LLC·Filed 2006·Granted May 29, 2007·17 cites·18 claims
- 2793US7199072B2Process of producing a supported mixed catalyst system and polyolefins therefromUNIVATION TECH LLC·Filed 2003·Granted Apr 3, 2007·38 cites·19 claims
- 2893US6956094B2Bimodal polyolefinUNIVATION TECH LLC·Filed 2004·Granted Oct 18, 2005·32 cites·15 claims
- 2990US6956089B2Polymerization processUNIVATION TECH LLC·Filed 2003·Granted Oct 18, 2005·23 cites·38 claims
- 3090US6399722B1Solution feed of multiple catalystsUNIVATION TECH LLC·Filed 1999·Granted Jun 4, 2002·59 cites·15 claims
- 3187US11149136B2Bimodal polyethyleneUNIVATION TECH LLC·Filed 2017·Granted Oct 19, 2021·2 cites·13 claims
- 3287US7985811B2Method for controlling sheeting in gas phase reactorsUNIVATION TECH LLC·Filed 2008·Granted Jul 26, 2011·9 cites·27 claims
- 3387US6831140B2Static measurement and detection in a gas phase polyethylene reactorUNIVATION TECH LLC·Filed 2003·Granted Dec 14, 2004·26 cites·12 claims
- 3487US6417304B1Method of polymerization and polymer produced therefromUNIVATION TECH LLC·Filed 1999·Granted Jul 9, 2002·46 cites·28 claims
- 3587US6372868B1Start up methods for multiple catalyst systemsUNIVATION TECH LLC·Filed 1999·Granted Apr 16, 2002·55 cites·28 claims
- 3686US11827725B2Multimodal polyethylene compositionUNIVATION TECH LLC·Filed 2019·Granted Nov 28, 2023·2 cites·8 claims
- 3786US8183400B2Alkylene oxide recovery systemsSZUL JOHN F·Filed 2009·Granted May 22, 2012·5 cites·20 claims
- 3886US6846886B2Polymerization processUNIVATION TECH LLC·Filed 2003·Granted Jan 25, 2005·20 cites·21 claims
- 3986US6586544B2Solution feed of multiple catalystsUNIVATION TECH LLC·Filed 2002·Granted Jul 1, 2003·23 cites·10 claims
- 4084US11208512B2Bimodal polyethylene resinsUNIVATION TECH LLC·Filed 2018·Granted Dec 28, 2021·2 cites·8 claims
- 4184US6566462B2Multiple catalyst systemUNIVATION TECH LLC·Filed 2001·Granted May 20, 2003·13 cites·18 claims
- 4280US8129551B2Alkylene oxide recovery systemsSZUL JOHN F·Filed 2009·Granted Mar 6, 2012·2 cites·20 claims
- 4379US11945889B2Bimodal polyethylene copolymer and film thereofUNIVATION TECH LLC·Filed 2019·Granted Apr 2, 2024·1 cites·10 claims
- 4479US8754177B2Polymerization processCROWTHER DONNA J·Filed 2009·Granted Jun 17, 2014·3 cites·14 claims
- 4578USRE41897ECatalyst composition, method of polymerization, and polymer therefromUNIVATION TECH LLC·Filed 2004·Granted Oct 26, 2010·9 cites·21 claims
- 4678US6825287B2Polymerization processUNIVATION TECH LLC·Filed 2004·Granted Nov 30, 2004·27 cites·21 claims
- 4777US12049527B2Bimodal polyethylene copolymer composition and pipe made thereofUNIVATION TECH LLC·Filed 2019·Granted Jul 30, 2024·2 cites·9 claims
- 4876US12503534B2Bimodal linear low density polyethylene copolymerDOW GLOBAL TECHNOLOGIES LLC·Filed 2021·Granted Dec 23, 2025·0 cites·15 claims
- 4976US12319759B2Bimodal linear low density polyethylene copolymerDOW GLOBAL TECHNOLOGIES LLC·Filed 2021·Granted Jun 3, 2025·0 cites·20 claims
- 5075US10471371B2Reflux condenser methodDOW TECHNOLOGY INVESTMENTS LLC·Filed 2017·Granted Nov 12, 2019·2 cites·9 claims
Showing the top 50 of 84 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →