Inventor · disambiguated record
Christopher E. Wittner
Also filed as: WITTNER CHRISTOPHER E
26 granted patents·4 pending applications·3,672 citations·filing 1998–2025
98Inventor score
Files withPHILLIPS PETROLEUM CO12CHEVRON PHILLIPS CHEMICAL CO LP7CHEVRON PHILLIPS CHEMICAL CO6BUCK RICHARD M3
Top patents by PatentIndex Score
30 records- 0199US7601665B2Compositions that can produce polymersCHEVRON PHILLIPS CHEMICAL CO·Filed 2004·Granted Oct 13, 2009·365 cites·14 claims
- 0299US6667274B1Polymerization catalystsPHILLIPS PETROLEUM CO·Filed 2000·Granted Dec 23, 2003·396 cites·10 claims
- 0399US6524987B1Organometal catalyst compositionsPHILLIPS PETROLEUM CO·Filed 1999·Granted Feb 25, 2003·472 cites·34 claims
- 0499US6316553B1Process for producing polymers using a composition comprising an organometal compound, a treated solid oxide compound, and an organoaluminum compoundPHILLIPS PETROLEUM CO·Filed 2000·Granted Nov 13, 2001·445 cites·28 claims
- 0599US6300271B1Compositions that can produce polymersPHILLIPS PETROLEUM CO·Filed 1998·Granted Oct 9, 2001·535 cites·39 claims
- 0699US6107230ACompositions that can produce polymersPHILLIPS PETROLEUM CO·Filed 1998·Granted Aug 22, 2000·524 cites·39 claims
- 0798US11339279B2Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applicationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted May 24, 2022·16 cites·34 claims
- 0898US7763561B2Compositions that can produce polymersCHEVRON PHILLIPS CHEMICAL CO·Filed 2007·Granted Jul 27, 2010·64 cites·20 claims
- 0998US6833338B2Organometal compound catalystPHILLIPS PETROLEUM CO·Filed 2003·Granted Dec 21, 2004·100 cites·12 claims
- 1098US6831141B2Process for producing polymersPHILLIPS PETROLEUM CO·Filed 2001·Granted Dec 14, 2004·124 cites·26 claims
- 1198US6548442B1Organometal compound catalystPHILLIPS PETROLEUM CO·Filed 1999·Granted Apr 15, 2003·407 cites·43 claims
- 1296US9040642B2Catalyst systems containing a bridged metalloceneCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted May 26, 2015·19 cites·26 claims
- 1395US7417097B2Organometal compound catalystPHILLIPS PETROLEUM CO·Filed 2004·Granted Aug 26, 2008·46 cites·20 claims
- 1494US12031022B2Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applicationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2022·Granted Jul 9, 2024·1 cites·25 claims
- 1594US8609793B2Catalyst systems containing a bridged metalloceneBUCK RICHARD M·Filed 2012·Granted Dec 17, 2013·14 cites·27 claims
- 1693US8637616B2Bridged metallocene catalyst systems with switchable hydrogen and comonomer effectsBUCK RICHARD M·Filed 2010·Granted Jan 28, 2014·12 cites·22 claims
- 1793US7547754B2Organometal compound catalystCHEVRON PHILLIPS CHEMICAL CO·Filed 2007·Granted Jun 16, 2009·39 cites·21 claims
- 1892US8492498B2Polymer compositions for rotational molding applicationsBUCK RICHARD M·Filed 2011·Granted Jul 23, 2013·12 cites·21 claims
- 1991US12240964B2Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applicationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2024·Granted Mar 4, 2025·0 cites·20 claims
- 2091US12077627B2Aqueous methods for titanating a chromium/silica catalyst with an alkali metalCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2023·Granted Sep 3, 2024·1 cites·23 claims
- 2191US7109277B2Polymerization catalystsPHILLIPS PETROLEUM CO·Filed 2003·Granted Sep 19, 2006·31 cites·46 claims
- 2290US9040643B2Bridged metallocene catalyst systems with switchable hydrogen and comonomer effectsCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted May 26, 2015·6 cites·24 claims
- 2389US12269911B2Aqueous methods for titanating a chromium/silica catalyst with an alkali metalCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2023·Granted Apr 8, 2025·1 cites·20 claims
- 2487US12365746B2Aqueous methods for titanating a chromium/silica catalyst with an alkali metalCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2024·Granted Jul 22, 2025·0 cites·28 claims
- 2585US6573344B1Propylene polymerization processPHILLIPS PETROLEUM CO·Filed 2000·Granted Jun 3, 2003·24 cites·27 claims
- 2683US6878785B2Organometal compound catalystPHILLIPS PETROLEUM CO·Filed 2003·Granted Apr 12, 2005·18 cites·16 claims
- 2779US2025346688A1Aqueous methods for titanating a chromium/silica catalyst with an alkali metalCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2025·Application pending·0 cites
- 2855US2010280199A1Compositions that can produce polymersCHEVRON PHILLIPS CHEMICAL CO·Filed 2010·Application pending·0 cites
- 2947US2005137366A1Organometal compound catalystFiled 2004·Application pending·0 cites
- 3044US2003162651A1Organometal catalyst compositionsFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →