Inventor · disambiguated record
David Knoeppel
Also filed as: KNOEPPEL DAVID · KNOEPPEL DAVID W
44 granted patents·12 pending applications·256 citations·filing 2001–2020
97Inventor score
Top patents by PatentIndex Score
56 records- 0196US6930071B2Ziegler-natta catalyst for polyolefinsFINA TECHNOLOGY·Filed 2003·Granted Aug 16, 2005·85 cites·15 claims
- 0296US6864207B2Ziegler-Natta catalyst for polyolefinsFINA TECHNOLOGY·Filed 2003·Granted Mar 8, 2005·79 cites·27 claims
- 0391US8809459B2Polystyrene blendsFINA TECHNOLOGY·Filed 2013·Granted Aug 19, 2014·9 cites·4 claims
- 0491US8242212B2Polystyrene blendsGROSSETETE CAMILLE·Filed 2011·Granted Aug 14, 2012·11 cites·7 claims
- 0590US9914814B2Polar polystyrene copolymers for enhanced foamingFINA TECHNOLOGY·Filed 2014·Granted Mar 13, 2018·6 cites·8 claims
- 0690US8957152B2Polarity manipulation in polystyrene for enhanced bio-polymer miscibilityWANG WEI·Filed 2011·Granted Feb 17, 2015·5 cites·26 claims
- 0789US9796842B2Epoxy functional polystyrene for enhanced PLA miscibilityFINA TECHNOLOGY·Filed 2015·Granted Oct 24, 2017·2 cites·16 claims
- 0889US8389636B2Polystyrene blendsGROSSETETE CAMILLE·Filed 2012·Granted Mar 5, 2013·9 cites·6 claims
- 0989US8110644B2Bimodal pipe resin and products made therefromCOFFY TIM·Filed 2010·Granted Feb 7, 2012·9 cites·6 claims
- 1088US8653187B2Use of nano alumina or silica dispersed in polystyreneBUTLER JAMES R·Filed 2011·Granted Feb 18, 2014·3 cites·35 claims
- 1188US7473664B2Formation of Ziegler-Natta catalystFINA TECHNOLOGY·Filed 2006·Granted Jan 6, 2009·13 cites·60 claims
- 1281US8981004B2Nano alumina or silica dispersed in polystyreneFINA TECHNOLOGY·Filed 2013·Granted Mar 17, 2015·2 cites·23 claims
- 1380US9944724B2Ziegler-Natta catalysts doped with non-group IV metal chloridesFINA TECHNOLOGY·Filed 2016·Granted Apr 17, 2018·1 cites·13 claims
- 1480US9193839B2Crosslinking control in high impact polystyrene manufacturing processFINA TECHNOLOGY·Filed 2014·Granted Nov 24, 2015·3 cites·19 claims
- 1578US9120889B2Increasing rubber phase volume in rubber-modified polystyreneFINA TECHNOLOGY·Filed 2014·Granted Sep 1, 2015·2 cites·23 claims
- 1676US8859703B2Bimodal pipe resin and products made therefromCOFFY TIM·Filed 2011·Granted Oct 14, 2014·2 cites·20 claims
- 1776US8383751B2High melt strength polystyrene and methods of making sameFINA TECHNOLOGY·Filed 2011·Granted Feb 26, 2013·2 cites·15 claims
- 1875US10870748B2Polarity manipulation in polystyrene for enhanced bio-polymer miscibilityFINA TECHNOLOGY·Filed 2018·Granted Dec 22, 2020·0 cites·15 claims
- 1975US8003741B2Ziegler-Natta catalystFINA TECHNOLOGY·Filed 2008·Granted Aug 23, 2011·3 cites·22 claims
- 2074US8501653B2Heat-treated Ziegler-Natta catalysts for ethylene polymerizationZHANG LEI·Filed 2011·Granted Aug 6, 2013·2 cites·16 claims
- 2173US8592535B2Ziegler-natta catalyst systems and polymers formed therefromVIZZINI KAYO·Filed 2010·Granted Nov 26, 2013·2 cites·13 claims
- 2271US9815957B2Foamed articles exhibiting improved thermal propertiesFINA TECHNOLOGY·Filed 2014·Granted Nov 14, 2017·0 cites·14 claims
- 2370US10294311B2Ziegler-natta catalysts doped with non-Group IV metal chloridesFINA TECHNOLOGY·Filed 2018·Granted May 21, 2019·0 cites·7 claims
- 2470US8822597B2Increasing rubber phase volume in rubber-modified polystyreneDEANDA CARLOS·Filed 2011·Granted Sep 2, 2014·2 cites·19 claims
- 2569US8063139B2Methods of making styrenic polymeric compositions and methods of using sameKNOEPPEL DAVID·Filed 2009·Granted Nov 22, 2011·1 cites·17 claims
- 2668US10125249B2Polarity manipulation in polystyrene for enhanced bio-polymer miscibilityFINA TECHNOLOGY·Filed 2014·Granted Nov 13, 2018·0 cites·18 claims
- 2768US2018215889A1Polar Polystyrene Copolymers for Enhanced FoamingFINA TECHNOLOGY·Filed 2018·Application pending·0 cites
- 2867US9249277B2Nano alumina or silica dispersed in polystyreneFINA TECHNOLOGY·Filed 2015·Granted Feb 2, 2016·0 cites·15 claims
- 2965US8063159B2Process for controlling morphology of Ziegler-Natta catalystsVIZZINI KAYO·Filed 2007·Granted Nov 22, 2011·1 cites·13 claims
- 3064US8268943B2Preparation of supported chromium catalyst and polymerization processMCCORMICK RICKY·Filed 2012·Granted Sep 18, 2012·1 cites·17 claims
- 3162US11639429B2Pre-dried polystyrene/alumina compound for foam extrusionFINA TECHNOLOGY·Filed 2020·Granted May 2, 2023·0 cites·20 claims
- 3262US10550245B2Alternative methods to control crosslinking in high impact polystyreneFINA TECHNOLOGY·Filed 2017·Granted Feb 4, 2020·0 cites·14 claims
- 3362US9212278B2Method for making a high impact polystyrene with high gloss and high impact strengthFINA TECHNOLOGY·Filed 2014·Granted Dec 15, 2015·0 cites·13 claims
- 3461US9809699B2Alternative methods to control crosslinking in high impact polystyreneFINA TECHNOLOGY·Filed 2015·Granted Nov 7, 2017·0 cites·12 claims
- 3561US8912242B2Polar polystyrene copolymers for enhanced foamingWANG WEI·Filed 2012·Granted Dec 16, 2014·0 cites·22 claims
- 3661US8258246B2Preparation of supported chromium catalyst and polymerization processMCCORMICK RICKY·Filed 2008·Granted Sep 4, 2012·1 cites·8 claims
- 3760US9527945B2Increasing rubber phase volume in rubber-modified polystyreneFINA TECHNOLOGY·Filed 2015·Granted Dec 27, 2016·0 cites·16 claims
- 3859US9593186B2Crosslinking control in high impact polystyrene manufacturing processFINA TECHNOLOGY·Filed 2015·Granted Mar 14, 2017·0 cites·9 claims
- 3957US9382347B2Ziegler-Natta catalysts doped with non-group IV metal chloridesZHANG LEI·Filed 2011·Granted Jul 5, 2016·0 cites·17 claims
- 4057US2008051538A1Bimodal pipe resin and products made therefromFINA TECHNOLOGY·Filed 2007·Application pending·0 cites
- 4155US9850357B2Use of polar additives for enhancing blowing agent solubility in polystyreneWANG WEI·Filed 2012·Granted Dec 26, 2017·0 cites·8 claims
- 4255US8889752B2Foamed articles exhibiting improved thermal propertiesSOSA JOSE·Filed 2011·Granted Nov 18, 2014·0 cites·28 claims
- 4353US9416202B2Ziegler-Natta catalyst systems and polymers formed therefromVIZZINI KAYO·Filed 2011·Granted Aug 16, 2016·0 cites·11 claims
- 4453US8691914B2High impact polystyrene with high gloss and high impact strengthKNOEPPEL DAVID W·Filed 2012·Granted Apr 8, 2014·0 cites·19 claims
- 4551US9012568B2Methods of making styrenic polymeric compositions and methods of using sameKNOEPPEL DAVID·Filed 2011·Granted Apr 21, 2015·0 cites·18 claims
- 4650US2005209094A1Ziegler-natta catalyst for polyolefinsFINA TECHNOLOGY·Filed 2005·Application pending·0 cites
- 4750US2011275509A1Ziegler-natta catalystFINA TECHNOLOGY·Filed 2011·Application pending·0 cites
- 4848US2009131616A1Methods for Improving Heat Transfer in Polymerization ProcessesFINA TECHNOLOGY·Filed 2008·Application pending·0 cites
- 4946US2008269441A1Polymerization process providing polyethylene of enhanced optical propertiesGUENTHER GERHARD·Filed 2007·Application pending·0 cites
- 5046US2010210797A1Polyethylene Films having Improved Barrier PropertiesFINA TECHNOLOGY·Filed 2009·Application pending·0 cites
Showing the top 50 of 56 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when David Knoeppel files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →