Inventor · disambiguated record
Scott E. Kufeld
Also filed as: KUFELD SCOTT E
83 granted patents·6 pending applications·1,726 citations·filing 1993–2025
99Inventor score
Files withCHEVRON PHILLIPS CHEMICAL CO LP51CHEVRON PHILLIPS CHEMICAL CO25PHILLIPS PETROLEUM CO5MCELVAIN ROBERT R2CHEVON PHILLIPS CHEMICAL COMPA1
Top patents by PatentIndex Score
89 records- 0199US11186662B1Metallocene catalyst systems with chemically-treated solid oxides for producing ethylene-based plastomers and elastomersCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted Nov 30, 2021·9 cites·20 claims
- 0298US11845815B2Multiple reactor and multiple zone polyolefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2023·Granted Dec 19, 2023·1 cites·20 claims
- 0398US9598514B2Component separations in polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Mar 21, 2017·16 cites·20 claims
- 0498US8822608B1Polyolefin production with different diluents in multiple polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Sep 2, 2014·212 cites·32 claims
- 0598US8597582B2Flashline heater system and methodHOTTOVY JOHN D·Filed 2011·Granted Dec 3, 2013·28 cites·22 claims
- 0697US11833479B2Catalyst slurry mixing process and systemCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted Dec 5, 2023·4 cites·20 claims
- 0797US11767378B2Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactorCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2022·Granted Sep 26, 2023·2 cites·21 claims
- 0897US11312797B2Systems and methods for polyethylene recovery with low volatile contentCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted Apr 26, 2022·4 cites·20 claims
- 0997US10696759B1Multiple reactor and multiple zone polyolefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2019·Granted Jun 30, 2020·6 cites·32 claims
- 1097US9556288B2Chain transfer agent removal between polyolefin polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Jan 31, 2017·13 cites·22 claims
- 1197US9403921B2Chain transfer agent removal between polyolefin polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Aug 2, 2016·14 cites·22 claims
- 1297US9340627B1Elbow and horizontal configurations in a loop reactorCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted May 17, 2016·20 cites·32 claims
- 1397US8883940B2Pressure management for slurry polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Nov 11, 2014·23 cites·19 claims
- 1497US8871886B1Polymerization product pressures in olefin polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Oct 28, 2014·20 cites·25 claims
- 1596US11466104B1Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactorCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2022·Granted Oct 11, 2022·2 cites·20 claims
- 1696US10781273B2Multiple reactor and multiple zone polyolefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2018·Granted Sep 22, 2020·4 cites·21 claims
- 1796US9850330B2Process for forming polyolefinsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Dec 26, 2017·6 cites·16 claims
- 1896US8987390B2Chain transfer agent removal between polyolefin polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Mar 24, 2015·18 cites·32 claims
- 1996US6262191B1Diluent slip stream to give catalyst wetting agentPHILLIPS PETROLEUM CO·Filed 1999·Granted Jul 17, 2001·731 cites·20 claims
- 2096US5648439AProcess for producing polyolefinsPHILLIPS PETROLEUM CO·Filed 1995·Granted Jul 15, 1997·101 cites·24 claims
- 2195US9610558B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Apr 4, 2017·5 cites·20 claims
- 2295US9593189B1Pressure control to reduce pump power fluctuationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Mar 14, 2017·6 cites·26 claims
- 2395US9120886B2Polymerization product pressures in olefin polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Sep 1, 2015·9 cites·15 claims
- 2495US8569433B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Oct 29, 2013·10 cites·20 claims
- 2595US8128877B2Energy efficient polyolefin processMCELVAIN ROBERT R·Filed 2011·Granted Mar 6, 2012·16 cites·22 claims
- 2695US8017701B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2005·Granted Sep 13, 2011·22 cites·19 claims
- 2794US10774161B2Systems and methods for polyethylene recovery with low volatile contentCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2019·Granted Sep 15, 2020·5 cites·20 claims
- 2894US10301404B2Flashline heater system and methodCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2018·Granted May 28, 2019·4 cites·20 claims
- 2994US9932422B2Flashline heater system and methodCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Apr 3, 2018·4 cites·19 claims
- 3093US10029230B1Flow in a slurry loop reactorCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Jul 24, 2018·4 cites·26 claims
- 3193US9963523B2Polyethylene production with multiple polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted May 8, 2018·5 cites·17 claims
- 3293US9238698B2Pressure management for slurry polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Jan 19, 2016·9 cites·32 claims
- 3393US8303899B2Energy efficient polyolefin processMCELVAIN ROBERT R·Filed 2012·Granted Nov 6, 2012·9 cites·15 claims
- 3492US12252558B2Multiple reactor and multiple zone polyolefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2023·Granted Mar 18, 2025·0 cites·20 claims
- 3592US8921498B2Pressure management for slurry polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Dec 30, 2014·9 cites·20 claims
- 3692US5624877AProcess for producing polyolefinsPHILLIPS PETROLEUM CO·Filed 1995·Granted Apr 29, 1997·65 cites·14 claims
- 3792US2024400729A1Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactorCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2024·Application pending·0 cites
- 3891US10858458B2Multiple reactor and multiple zone polyolefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2019·Granted Dec 8, 2020·1 cites·23 claims
- 3991US9809660B2Polymerization product pressures in olefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Nov 7, 2017·2 cites·20 claims
- 4091US9605095B2Polymerization product pressures in olefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Mar 28, 2017·2 cites·20 claims
- 4190US12195562B2Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactorCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2023·Granted Jan 14, 2025·0 cites·21 claims
- 4290US8932527B1Elbow and horizontal configurations in a loop reactorCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Jan 13, 2015·6 cites·9 claims
- 4390US6838531B2Process and apparatus for separating diluent from polymer solidsCHEVRON PHILLIPS CHEMICAL CO·Filed 2003·Granted Jan 4, 2005·36 cites·21 claims
- 4489US12319774B1Particle size control of silyl chromate catalysts and uses thereof in fluidized bed reactorsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2024·Granted Jun 3, 2025·0 cites·18 claims
- 4589US9221920B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Dec 29, 2015·4 cites·20 claims
- 4689US9187383B2Component separations in polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2015·Granted Nov 17, 2015·3 cites·19 claims
- 4789US7033545B2Slurry polymerization reactor having large length/diameter ratioCHEVON PHILLIPS CHEMICAL COMPA·Filed 2002·Granted Apr 25, 2006·45 cites·21 claims
- 4888US10844147B2Multiple reactor and multiple zone polyolefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted Nov 24, 2020·1 cites·17 claims
- 4988US6420497B1Solids concentration in slurry polymerizationPHILLIPS PETROLEUM CO·Filed 1999·Granted Jul 16, 2002·74 cites·15 claims
- 5087US9845369B2Pressure control to reduce pump power fluctuationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Dec 19, 2017·2 cites·20 claims
Showing the top 50 of 89 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →