Inventor
John F. Szul
Inventor
Nitro, WV, US
Overview
Patents· 48 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds32%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests27%
C08LCompositions of macromolecular compounds9%
C07DHeterocyclic compounds7%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
B29CShaping or joining of plastics4%
C08JWorking-up4%
Y10TTechnical subjects covered by former us classification4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%
C07CAcyclic or carbocyclic compounds2%
PatentTitleYear
11,028,191Polymerization catalysts with improved ethylene enchainment202110,941,284Polyethylene composition202110,471,371Reflux condenser method20199,290,469'Production of oxidized olefins'20168,754,177'Polymerization process'20148,497,329'Methods of controlling polymer properties'20138,476,464'Alkylene oxide purification systems'20138,399,581'Polyethylene films with improved physical properties'20138,309,771'Two-stage, gas phase process for the manufacture of alkylene glycol'20128,257,558'Alkylene oxide purification systems'20128,227,552'Methods of controlling polymer properties'20128,183,400'Alkylene oxide recovery systems'20128,129,551'Alkylene oxide recovery systems'20127,985,811'Method for controlling sheeting in gas phase reactors'2011RE041897'Catalyst composition, method of polymerization, and polymer therefrom'20107,754,840'Bimodal high density polyethlyene'20107,300,988'Single catalyst low, medium and high density polyethylenes'20077,223,825'Single catalyst low, medium and high density polyethylenes'20077,199,072'Process of producing a supported mixed catalyst system and polyolefins therefrom'20077,179,876'High tear films from hafnocene catalyzed polyethylenes'20077,172,816'High tear films from hafnocene catalyzed polyethylenes'20077,157,531'Methods for producing polymers with control over composition distribution'20077,141,632'Mixed metallocene catalyst systems containing a poor comonomer incorporator and a good comonomer incorporator'20067,078,467'Single catalyst low, medium and high density polyethylenes'20066,956,094'Bimodal polyolefin'20056,956,088'Polyethylene films with improved physical properties'20056,956,089'Polymerization process'20056,936,675'High tear films from hafnocene catalyzed polyethylenes'20056,897,273'Catalyst composition, method of polymerization and polymer therefrom'20056,894,128'Catalyst composition, method of polymerization, and polymer therefrom'20056,846,886'Polymerization process'20056,841,631'Catalyst composition, method of polymerization, and polymer therefrom'20056,831,140'Static measurement and detection in a gas phase polyethylene reactor'20046,828,394'Mixed metallocene catalyst systems containing a poor comonomer incorporator and a good comonomer incorporator'20046,825,287'Polymerization process'20046,696,537'Method of polymerization and polymer produced therefrom'20046,689,847'Polymerization process'20046,608,149'Polymerization process'20036,605,675'Polymerization process'20036,586,544'Solution feed of multiple catalysts'20036,566,462'Multiple catalyst system'20036,534,604'Catalyst composition, method of polymerization, and polymer therefrom'20036,489,408'Polymerization process'20026,417,304'Method of polymerization and polymer produced therefrom'20026,399,722'Solution feed of multiple catalysts'20026,372,868'Start up methods for multiple catalyst systems'20026,340,730'Multiple catalyst system'20026,274,684'Catalyst composition, method of polymerization, and polymer therefrom'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2021Patents assigned to UNIVATION TECH LLC (41)· patent assignee history
2001–2013Based in Nitro, WV, US· patent location history
2004–2021Based in Hurricane, WV, US· patent location history
2012–2014Patents assigned to SZUL JOHN F (9)· patent assignee history
2012–2019Patents assigned to DOW TECHNOLOGY INVESTMENTS LLC (7)· patent assignee history
2012–2013Patents assigned to ANDRESEN HARVEY E (4)· patent assignee history
2012–2013Patents assigned to FAIRCHILD PHILLIP R (4)· patent assignee history
2021Based in South Charleston, WV, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIVATION TECH LLC | 41 | 2001–2021 |
| SZUL JOHN Fself | 9 | 2012–2014 |
| DOW TECHNOLOGY INVESTMENTS LLC | 7 | 2012–2019 |
| ANDRESEN HARVEY E | 4 | 2012–2013 |
| FAIRCHILD PHILLIP R | 4 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nitro, WV, US | 25 | 2001–2013 |
| Hurricane, WV, US | 22 | 2004–2021 |
| South Charleston, WV, US | 1 | 2021 |