Inventor · disambiguated record
John R. Parrish
Also filed as: PARRISH JOHN R · PARRISH JOHN ROBERTS
22 granted patents·4 pending applications·627 citations·filing 1995–2020
96Inventor score
Files withUNION CARBIDE CHEM PLASTIC11DOW GLOBAL TECHNOLOGIES LLC5PARRISH JOHN R3UNIVATION TECH LLC3DOW CHEMICAL CO1
Top patents by PatentIndex Score
26 records- 0196US5627242AProcess for controlling gas phase fluidized bed polymerization reactorUNION CARBIDE CHEM PLASTIC·Filed 1996·Granted May 6, 1997·325 cites·11 claims
- 0288US6472483B1Dry product discharge from a gas phase polymerization reactor operating in the condensing modeUNION CARBIDE CHEM PLASTIC·Filed 2000·Granted Oct 29, 2002·45 cites·42 claims
- 0381US8354481B2Method of controlling a polymerization reactorDOW GLOBAL TECHNOLOGIES LLC·Filed 2011·Granted Jan 15, 2013·3 cites·20 claims
- 0479US7343225B2Method for reducing off-grade product production during reaction transitionsUNIVATION TECH LLC·Filed 2005·Granted Mar 11, 2008·6 cites·31 claims
- 0579US6988022B2Method for online estimation of reactor split for multimodal polyolefinsUNIVATION TECH LLC·Filed 2004·Granted Jan 17, 2006·22 cites·19 claims
- 0676US6498220B2Reactor product discharge systemUNION CARBIDE CHEM PLASTIC·Filed 2001·Granted Dec 24, 2002·15 cites·17 claims
- 0776US6255411B1Reactor product discharge systemUNION CARBIDE CHEM PLASTIC·Filed 1999·Granted Jul 3, 2001·42 cites·13 claims
- 0874US9023958B2Methods and systems for catalyst deliveryUNIVATION TECH LLC·Filed 2012·Granted May 5, 2015·2 cites·15 claims
- 0970US5844054AProcess control in the presence of chromium based catalystsFiled 1997·Granted Dec 1, 1998·27 cites·5 claims
- 1068US5589630AFast gas chromatography method, apparatus and applicationsUNION CARBIDE CHEM PLASTIC·Filed 1995·Granted Dec 31, 1996·31 cites·3 claims
- 1167US8032328B2Process monitoring technique and related actionsDOW GLOBAL TECHNOLOGIES LLC·Filed 2007·Granted Oct 4, 2011·6 cites·19 claims
- 1267US6365681B1Preventing upsets in polymerization reactorsUNION CARBIDE CHEM PLASTIC·Filed 2001·Granted Apr 2, 2002·27 cites·20 claims
- 1366US6846884B2Control of resin propertiesUNION CARBIDE CHEM PLASTIC·Filed 2002·Granted Jan 25, 2005·10 cites·40 claims
- 1464US8293853B2Raw material efficiency method and processPARRISH JOHN R·Filed 2009·Granted Oct 23, 2012·2 cites·8 claims
- 1563US6063877AControl of gas phase polymerization reactionsUNION CARBIDE CHEM PLASTIC·Filed 1997·Granted May 16, 2000·38 cites·10 claims
- 1660US8742035B2Method of controlling a polymerization reactorDOW GLOBAL TECHNOLOGIES LLC·Filed 2012·Granted Jun 3, 2014·2 cites·8 claims
- 1759US8093341B2Method of controlling a polymerization reactorPARRISH JOHN R·Filed 2005·Granted Jan 10, 2012·5 cites·13 claims
- 1856US5990250AMethod of fluidized bed temperature controlUNION CARBIDE CHEM PLASTIC·Filed 1997·Granted Nov 23, 1999·15 cites·10 claims
- 1954US8071699B2Methods of controlling properties in multimodal systemsPARRISH JOHN R·Filed 2006·Granted Dec 6, 2011·1 cites·24 claims
- 2050US8862438B2Method for improving the prediction of polymer propertiesDRABISH JEFFREY B·Filed 2008·Granted Oct 14, 2014·2 cites·4 claims
- 2146US2009214395A1Raw Material Efficiency Method and ProcessDOW CHEMICAL CO·Filed 2008·Application pending·0 cites
- 2245US7625987B2Gas phase polymerization and method of controlling sameUNION CARBIDE CHEM PLASTIC·Filed 2004·Granted Dec 1, 2009·1 cites·30 claims
- 2345US2016048139A1Real-Time Chemical Process Monitoring, Assessment and Decision-Making Assistance MethodDOW GLOBAL TECHNOLOGIES LLC·Filed 2014·Application pending·0 cites
- 2441US12050444B2Gas phase polymerization process control using projected disturbance variables and nonlinear dynamic modelsDOW GLOBAL TECHNOLOGIES LLC·Filed 2020·Granted Jul 30, 2024·0 cites·8 claims
- 2540US2004254309A1Use of cumulative distributions to improve reactor controlFiled 2004·Application pending·0 cites
- 2639US2005228150A1Use of instantaneous split to improve reactor controlUNION CARBIDE CHEM PLASTIC·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →