Inventor · disambiguated record
John D. Hottovy
Also filed as: HOTTOVY JOHN D · MCDANIEL MAX P
85 granted patents·8 pending applications·3,547 citations·filing 1979–2019
99Inventor score
Files withCHEVRON PHILLIPS CHEMICAL CO36CHEVRON PHILLIPS CHEMICAL CO LP22PHILLIPS PETROLEUM CO14HOTTOVY JOHN D8MCELVAIN ROBERT R3
Top patents by PatentIndex Score
93 records- 0198US9598514B2Component separations in polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Mar 21, 2017·16 cites·20 claims
- 0298US8597582B2Flashline heater system and methodHOTTOVY JOHN D·Filed 2011·Granted Dec 3, 2013·28 cites·22 claims
- 0397US9340627B1Elbow and horizontal configurations in a loop reactorCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted May 17, 2016·20 cites·32 claims
- 0497US8883940B2Pressure management for slurry polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Nov 11, 2014·23 cites·19 claims
- 0597US8871886B1Polymerization product pressures in olefin polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Oct 28, 2014·20 cites·25 claims
- 0697US6239235B1High solids slurry polymerizationPHILLIPS PETROLEUM CO·Filed 1997·Granted May 29, 2001·831 cites·25 claims
- 0796US6262191B1Diluent slip stream to give catalyst wetting agentPHILLIPS PETROLEUM CO·Filed 1999·Granted Jul 17, 2001·731 cites·20 claims
- 0896US5183866APolymer recovery processPHILLIPS PETROLEUM CO·Filed 1989·Granted Feb 2, 1993·94 cites·20 claims
- 0995US9610558B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Apr 4, 2017·5 cites·20 claims
- 1095US9593189B1Pressure control to reduce pump power fluctuationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Mar 14, 2017·6 cites·26 claims
- 1195US9120886B2Polymerization product pressures in olefin polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Sep 1, 2015·9 cites·15 claims
- 1295US8569433B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Oct 29, 2013·10 cites·20 claims
- 1395US8128877B2Energy efficient polyolefin processMCELVAIN ROBERT R·Filed 2011·Granted Mar 6, 2012·16 cites·22 claims
- 1495US8017701B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2005·Granted Sep 13, 2011·22 cites·19 claims
- 1595US5565175AApparatus and method for producing ethylene polymerPHILLIPS PETROLEUM CO·Filed 1990·Granted Oct 15, 1996·786 cites·33 claims
- 1694US10301404B2Flashline heater system and methodCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2018·Granted May 28, 2019·4 cites·20 claims
- 1794US9932422B2Flashline heater system and methodCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Apr 3, 2018·4 cites·19 claims
- 1894US8354063B2Pumping apparatus and process for polymerization in loop reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2010·Granted Jan 15, 2013·15 cites·20 claims
- 1994US7615596B2Multiple component feed methods and systemsCHEVRON PHILLIPS CHEMICAL CO·Filed 2005·Granted Nov 10, 2009·38 cites·9 claims
- 2093US10029230B1Flow in a slurry loop reactorCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Jul 24, 2018·4 cites·26 claims
- 2193US9238698B2Pressure management for slurry polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Jan 19, 2016·9 cites·32 claims
- 2293US8703063B2System and method for closed relief of a polyolefin loop reactor systemHOTTOVY JOHN D·Filed 2010·Granted Apr 22, 2014·11 cites·23 claims
- 2393US8303899B2Energy efficient polyolefin processMCELVAIN ROBERT R·Filed 2012·Granted Nov 6, 2012·9 cites·15 claims
- 2493US7999044B2System and method for deinventory of polymerization reactorCHEVRON PHILLIPS CHEMICAL CO·Filed 2008·Granted Aug 16, 2011·17 cites·6 claims
- 2593US7517947B2Polymer transfer within a polymerization systemCHEVRON PHILLIPS CHEMICAL CO·Filed 2006·Granted Apr 14, 2009·19 cites·21 claims
- 2693US7109290B2Polymer transfer within a polymerization systemCHEVRON PHILLIPS CHEMICAL CO·Filed 2005·Granted Sep 19, 2006·30 cites·19 claims
- 2793US7014821B2Pumping apparatus for slurry polymerization in loop reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2003·Granted Mar 21, 2006·50 cites·51 claims
- 2892US9358515B2Compressible liquid diluent in polyolefin polymerizationHOTTOVY JOHN D·Filed 2010·Granted Jun 7, 2016·9 cites·15 claims
- 2992US8921498B2Pressure management for slurry polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Dec 30, 2014·9 cites·20 claims
- 3091US9809660B2Polymerization product pressures in olefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Nov 7, 2017·2 cites·20 claims
- 3191US9605095B2Polymerization product pressures in olefin polymerizationCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Mar 28, 2017·2 cites·20 claims
- 3291US6815511B2Continuous withdrawal from high solids slurry polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2003·Granted Nov 9, 2004·49 cites·13 claims
- 3390US8932527B1Elbow and horizontal configurations in a loop reactorCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Jan 13, 2015·6 cites·9 claims
- 3490US7736597B2Pumping apparatus and process for polymerization in loop reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2006·Granted Jun 15, 2010·13 cites·17 claims
- 3590US6743869B2High polymer solids slurry polymerization employing 1-olefin comonomerPHILLIPS PETROLEUM CO·Filed 2002·Granted Jun 1, 2004·26 cites·9 claims
- 3689US9221920B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Dec 29, 2015·4 cites·20 claims
- 3789US9187383B2Component separations in polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2015·Granted Nov 17, 2015·3 cites·19 claims
- 3889US8410329B2Ethylene separationHOTTOVY JOHN D·Filed 2010·Granted Apr 2, 2013·10 cites·30 claims
- 3989US7037980B2Monovinylarene/conjugated diene copolymers having lower glass transition temperaturesCHEVRON PHILLIPS CHEMICAL CO·Filed 2003·Granted May 2, 2006·30 cites·26 claims
- 4089US7033545B2Slurry polymerization reactor having large length/diameter ratioCHEVON PHILLIPS CHEMICAL COMPA·Filed 2002·Granted Apr 25, 2006·45 cites·21 claims
- 4188US7547750B2Apparatus and method for removing polymer solids from slurry loop reactorCHEVRON PHILLIPS CHEMICAL CO·Filed 2005·Granted Jun 16, 2009·10 cites·19 claims
- 4288US6806324B2High solids slurry polymerization using heat exchange to condense the flashed diluentPHILLIPS PETROLEUM CO·Filed 2002·Granted Oct 19, 2004·27 cites·19 claims
- 4388US4211863APolymer slurry catalyst residue deactivationPHILLIPS PETROLEUM CO·Filed 1979·Granted Jul 8, 1980·40 cites·7 claims
- 4487US9845369B2Pressure control to reduce pump power fluctuationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Dec 19, 2017·2 cites·20 claims
- 4587US8765884B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Jul 1, 2014·3 cites·19 claims
- 4687US8344078B2Continuous take off technique and pressure control of polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2010·Granted Jan 1, 2013·5 cites·12 claims
- 4787US7015289B2Process and apparatus for reducing take-off valve plugging in a polymerization processCHEVRON PHILLIPS CHEMICAL CO·Filed 2003·Granted Mar 21, 2006·30 cites·18 claims
- 4887US6042790AApparatus for maintaining unreacted monomer concentration in a polymerization reactorPHILLIPS PETROLEUM CO·Filed 1994·Granted Mar 28, 2000·70 cites·7 claims
- 4986US9284430B2Component separations in polymerizationCHEVRON PHILLIPS CHEMICAL CO·Filed 2015·Granted Mar 15, 2016·2 cites·18 claims
- 5086US9180405B2Ethylene recovery by absorptionHOTTOVY JOHN D·Filed 2012·Granted Nov 10, 2015·6 cites·33 claims
Showing the top 50 of 93 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →