Inventor · disambiguated record
F. David Hussein
Also filed as: HUSSEIN F D · HUSSEIN F DAVID
30 granted patents·4 pending applications·198 citations·filing 2003–2019
96Inventor score
Top patents by PatentIndex Score
34 records- 0196US9540460B2Preparation of polyolefinUNIVATION TECH LLC·Filed 2013·Granted Jan 10, 2017·21 cites·12 claims
- 0295US8497330B2Methods for polymerization using spray dried and slurried catalystHUSSEIN F DAVID·Filed 2010·Granted Jul 30, 2013·24 cites·16 claims
- 0393US9221937B2Methods and systems for olefin polymerizationUNIVATION TECH LLC·Filed 2013·Granted Dec 29, 2015·10 cites·19 claims
- 0492US8433443B2Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity eventsHAGERTY ROBERT O·Filed 2008·Granted Apr 30, 2013·21 cites·30 claims
- 0591US8957167B2Polymerization process using a supported constrained geometry catalystHUSSEIN F DAVID·Filed 2010·Granted Feb 17, 2015·14 cites·7 claims
- 0691US8835582B2Catalyst systems and methods for using same to produce polyolefin productsCANN KEVIN J·Filed 2011·Granted Sep 16, 2014·9 cites·30 claims
- 0790US9676885B2Continuity compositions and methods of making and using the sameUNIVATION TECH LLC·Filed 2015·Granted Jun 13, 2017·3 cites·15 claims
- 0888US6995217B2Processes for transitioning between metallocene and Ziegler-Natta polymerization catalystsUNIVATION TECH LLC·Filed 2005·Granted Feb 7, 2006·10 cites·6 claims
- 0987US7985811B2Method for controlling sheeting in gas phase reactorsUNIVATION TECH LLC·Filed 2008·Granted Jul 26, 2011·9 cites·27 claims
- 1086US7629422B2Process for transitioning between Ziegler-Natta-based and chromium-based catalystsUNIVATION TECH LLC·Filed 2005·Granted Dec 8, 2009·11 cites·43 claims
- 1184US7799876B2Method and apparatus for controlling static charge in polyolefin reactorsUNIVATION TECH LLC·Filed 2007·Granted Sep 21, 2010·7 cites·30 claims
- 1282US10280283B2Supported catalyst with improved flowabilityUNIVATION TECH LLC·Filed 2013·Granted May 7, 2019·2 cites·6 claims
- 1382US9512254B2Increased polymer melt flow ratio via feed of a supported catalyst saturated with a selected liquid agentUNIVATION TECH LLC·Filed 2013·Granted Dec 6, 2016·3 cites·16 claims
- 1482US9221936B2Continuity additive for polyolefin polymerization processesUNIVATION TECH LLC·Filed 2012·Granted Dec 29, 2015·4 cites·19 claims
- 1581US8148481B2Method for seed bed treatment for a polymerization reactionHUSSEIN F DAVID·Filed 2009·Granted Apr 3, 2012·5 cites·19 claims
- 1680US10597509B2Supported catalyst with improved flowabilityUNIVATION TECH LLC·Filed 2019·Granted Mar 24, 2020·0 cites·8 claims
- 1778US9410001B2Recycle gas cooler systems for gas-phase polymerization processesUNIVATION TECH LLC·Filed 2013·Granted Aug 9, 2016·2 cites·18 claims
- 1877US6858684B2Processes for transitioning between various polymerization catalystsUNIVATION TECH LLC·Filed 2003·Granted Feb 22, 2005·15 cites·56 claims
- 1975US10676589B2Supported catalyst with improved flowabilityUNIVATION TECH LLC·Filed 2019·Granted Jun 9, 2020·0 cites·15 claims
- 2074US10676588B2Supported catalyst with improved flowabilityUNIVATION TECH LLC·Filed 2019·Granted Jun 9, 2020·0 cites·11 claims
- 2174US8586685B2Polymerization reaction systemHUSSEIN F DAVID·Filed 2010·Granted Nov 19, 2013·2 cites·30 claims
- 2273US8420733B2Continuity additives and their use in polymerization processesSTAKEM F GREGORY·Filed 2008·Granted Apr 16, 2013·5 cites·28 claims
- 2369US9938361B2Methods for preparing catalyst systems with increased productivityUNIVATION TECH LLC·Filed 2013·Granted Apr 10, 2018·1 cites·14 claims
- 2467US8703884B2Additive for polyolefin polymerization processesMARIOTT WESLEY R·Filed 2011·Granted Apr 22, 2014·1 cites·17 claims
- 2565US8084554B2Methods and devices for polymerizationAGAPIOU AGAPIOS K·Filed 2008·Granted Dec 27, 2011·1 cites·17 claims
- 2664US6949612B2Processes for transitioning between metallocene and Ziegler-Natta polymerization catalystsUNIVATION TECH LLC·Filed 2003·Granted Sep 27, 2005·17 cites·14 claims
- 2763US8129483B2Circulating fluidized bed reactorCAI PING·Filed 2009·Granted Mar 6, 2012·1 cites·19 claims
- 2862US10167350B2Preparation of polyolefinUNIVATION TECH LLC·Filed 2016·Granted Jan 1, 2019·0 cites·5 claims
- 2955US8192690B2Methods and devices for polymerizationAGAPIOU AGAPIOS K·Filed 2011·Granted Jun 5, 2012·0 cites·7 claims
- 3054US2010143207A1Semi-conductive coatings for a polyolefin reaction systemUNIVATION TECH LLC·Filed 2007·Application pending·0 cites
- 3150US2014200317A1Methods for Reducing Static Charge of a Catalyst and Methods for Using the Catalyst to Produce PolyolefinsAPECETCHE MARIA A·Filed 2014·Application pending·0 cites
- 3247US8722820B2Methods for reducing static charge of a catalyst and methods for using the catalyst to produce polyolefinsAPECETCHE MARIA A·Filed 2010·Granted May 13, 2014·0 cites·12 claims
- 3338US2011256632A1Additive for Polyolefin Polymerization ProcessesUNIVATION TECH LLC·Filed 2010·Application pending·0 cites
- 3436US2005148742A1Method for controlling sheeting in gas phase reactorsFiled 2004·Application pending·0 cites
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