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John Severn

BA Borealis Ag: 8 patents #104 of 611Top 20%
DB Dsm Ip Assets B.V.: 5 patents #249 of 2,011Top 15%
SI Stichting Dutch Polymer Institute: 1 patents #10 of 34Top 30%
Overall (All Time): #344,036 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11400639 Transparent drawn article Cornelis Wilhelmus Maria Bastiaansen, Lihua Shen 2022-08-02
10676844 Low creep fiber Tom Antonius Philomena Engels, Gert De Cremer, Romain Berthoud, Roman STEPANYAN, Peter ROOZEMOND +1 more 2020-06-09
10647792 Preparation of ultra high molecular weight polyethylene Romain Berthoud, Timothy James Kidd 2020-05-12
10221262 Preparation of ultra high molecular weight ethylene copolymer Romain Berthoud, Timothy James Kidd 2019-03-05
9771440 Preparation of ultra high molecular weight polyethylene Romain Berthoud, Timothy James Kidd 2017-09-26
9475890 Catalyst Kalle Kallio, Marja Mustonen, Lauri Huhtanen, Pascal Castro, Ville Virkkunen +2 more 2016-10-25
9469700 Polymerisation process and catalyst Kalle Kallio, Marja Mustonen, Lauri Huhtanen, Pascal Castro, Ville Virkkunen +2 more 2016-10-18
9079988 Preparation of propylene copolymer with dynamically operated reactor Michiel Bergstra, Torvald Vestberg, Pauli Leskinen, Bo Malm, Olli Tuominen +1 more 2015-07-14
8962509 Preparation of a solid catalyst system Kalle Kallio, Marja Mustonen, Pertti Elo, Peter Denifl 2015-02-24
8828901 Preparation of a solid catalyst system Kalle Kallio, Marja Mustonen, Pertti Elo, Peter Denifl 2014-09-09
8476370 High density polymer compositions, a method for their preparation and pressure-resistant pipes made therefrom Mats Bäckman, Carl-Gustaf Ek, Anneli Pakkanen, Magnus Palmlöf, Tarja-Tuulikki Turpeinen 2013-07-02
8420562 Process for the preparation of an unsupported, solid metallocene catalyst system and its use in polymerization of olefins Pertti Elo, Peter Denifl, Soile Rautio, Marja Mustonen, Anu-Leena Hongell 2013-04-16
8394733 Process for the preparation of an unsupported, solid olefin polymerisation catalyst and use in polymerisation of olefins Pertti Elo, Sameer Vijay, Marja Mustonen 2013-03-12
8044155 Titanocene-based catalyst system John C. Chadwick 2011-10-25