Inventor · disambiguated record
John Severn
Also filed as: SEVERN JOHN · SEVERN JOHN R · SEVERN JOHN RICHARD
14 granted patents·4 pending applications·24 citations·filing 2005–2017
86Inventor score
Top patents by PatentIndex Score
18 records- 0188US9469700B2Polymerisation process and catalystBOREALIS AG·Filed 2013·Granted Oct 18, 2016·7 cites·14 claims
- 0283US9475890B2CatalystBOREALIS AG·Filed 2013·Granted Oct 25, 2016·4 cites·18 claims
- 0381US8476370B2High density polymer compositions, a method for their preparation and pressure-resistant pipes made therefromBACKMAN MATS·Filed 2009·Granted Jul 2, 2013·9 cites·15 claims
- 0467US8420562B2Process for the preparation of an unsupported, solid metallocene catalyst system and its use in polymerization of olefinsELO PERTTI·Filed 2009·Granted Apr 16, 2013·3 cites·16 claims
- 0566US9771440B2Preparation of ultra high molecular weight polyethyleneDSM IP ASSETS BV·Filed 2014·Granted Sep 26, 2017·1 cites·8 claims
- 0662US10647792B2Preparation of ultra high molecular weight polyethyleneDSM IP ASSETS BV·Filed 2017·Granted May 12, 2020·0 cites·11 claims
- 0754US10221262B2Preparation of ultra high molecular weight ethylene copolymerDSM IP ASSETS BV·Filed 2014·Granted Mar 5, 2019·0 cites·10 claims
- 0852US9079988B2Preparation of propylene copolymer with dynamically operated reactorBERGSTRA MICHIEL·Filed 2009·Granted Jul 14, 2015·0 cites·30 claims
- 0951US11400639B2Transparent drawn articleDSM IP ASSETS BV·Filed 2017·Granted Aug 2, 2022·0 cites·19 claims
- 1048US2007179049A1Titanocenen-based catalyst systemSEVERN JOHN R·Filed 2005·Application pending·0 cites
- 1147US2018361650A1Transparant drawn articleDSM IP ASSETS BV·Filed 2016·Application pending·0 cites
- 1242US8394733B2Process for the preparation of an unsupported, solid olefin polymerisation catalyst and use in polymerisation of olefinsSEVERN JOHN·Filed 2009·Granted Mar 12, 2013·0 cites·12 claims
- 1342US2009318642A1Surface-Modified Polymerization Catalysts for the Preparation of Low-Gel Polyolefin FilmsBOREALIS TECH OY·Filed 2006·Application pending·0 cites
- 1440US10676844B2Low creep fiberDSM IP ASSETS BV·Filed 2016·Granted Jun 9, 2020·0 cites·30 claims
- 1540US2007173400A1Catalyst system comprising magnesium halideSTICHTING DUTCH POLYMER INST·Filed 2005·Application pending·0 cites
- 1638US8962509B2Preparation of a solid catalyst systemKALLIO KALLE·Filed 2011·Granted Feb 24, 2015·0 cites·16 claims
- 1735US8044155B2Titanocene-based catalyst systemSTICHTING DUTCH POLYMER INST·Filed 2008·Granted Oct 25, 2011·0 cites·10 claims
- 1833US8828901B2Preparation of a solid catalyst systemKALLIO KALLE·Filed 2011·Granted Sep 9, 2014·0 cites·11 claims
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