Inventor · disambiguated record
Dale A. Zellers
Also filed as: CLARK JOSEPH W · ZELLERS DALE A
19 granted patents·1 pending application·265 citations·filing 1977–2015
95Inventor score
Files withCHEVRON PHILLIPS CHEMICAL CO12PHILLIPS PETROLEUM CO3MCELVAIN ROBERT R2BURNS DAVID H1CHEVRON PHILLIPS CHEMICAL CO LP1
Top patents by PatentIndex Score
20 records- 0195US9610558B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Apr 4, 2017·5 cites·20 claims
- 0295US8569433B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Oct 29, 2013·10 cites·20 claims
- 0395US8128877B2Energy efficient polyolefin processMCELVAIN ROBERT R·Filed 2011·Granted Mar 6, 2012·16 cites·22 claims
- 0495US8017701B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2005·Granted Sep 13, 2011·22 cites·19 claims
- 0594US8354063B2Pumping apparatus and process for polymerization in loop reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2010·Granted Jan 15, 2013·15 cites·20 claims
- 0694US7615596B2Multiple component feed methods and systemsCHEVRON PHILLIPS CHEMICAL CO·Filed 2005·Granted Nov 10, 2009·38 cites·9 claims
- 0793US8303899B2Energy efficient polyolefin processMCELVAIN ROBERT R·Filed 2012·Granted Nov 6, 2012·9 cites·15 claims
- 0893US7014821B2Pumping apparatus for slurry polymerization in loop reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2003·Granted Mar 21, 2006·50 cites·51 claims
- 0990US7736597B2Pumping apparatus and process for polymerization in loop reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2006·Granted Jun 15, 2010·13 cites·17 claims
- 1089US9221920B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Dec 29, 2015·4 cites·20 claims
- 1187US8765884B2Energy efficient polyolefin processCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Jul 1, 2014·3 cites·19 claims
- 1287US7015289B2Process 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
- 1379US7179426B2Large catalyst activatorCHEVRON PHILLIPS CHEMICAL CO·Filed 2003·Granted Feb 20, 2007·18 cites·23 claims
- 1476US7645841B2Method and system to reduce polymerization reactor foulingCHEVRON PHILLIPS CHEMICAL CO·Filed 2004·Granted Jan 12, 2010·18 cites·20 claims
- 1560US9266974B2Pumping apparatus and process for polymerization in loop reactorsCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Feb 23, 2016·0 cites·7 claims
- 1659US8992840B2Multiple component feed methods and systemsBURNS DAVID H·Filed 2009·Granted Mar 31, 2015·1 cites·23 claims
- 1749US6605247B2Blow molding processPHILLIPS PETROLEUM CO·Filed 2002·Granted Aug 12, 2003·1 cites·8 claims
- 1843US2004116625A1Loop reactor apparatus and polymerization processes with multiple feed points for olefins and catalystsFiled 2003·Application pending·0 cites
- 1940US4186061AFractionation of methyl-mercaptan reactor effluentPHILLIPS PETROLEUM CO·Filed 1977·Granted Jan 29, 1980·7 cites·3 claims
- 2031US6435856B1Blow molding apparatus with fixedly positioned pin and reciprocating sleevePHILLIPS PETROLEUM CO·Filed 1999·Granted Aug 20, 2002·5 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →