Assignee
NEFZGER HARTMUT
DE·8 granted patents·7 pending applications·31 citations·filing 2007–2012
Top patents by PatentIndex Score
15 records- 0194US8273846B2Polyurethane and polyurethane urea elastomers based on polycarbonate polyolsNEFZGER HARTMUT·Filed 2008·Granted Sep 25, 2012·16 cites·2 claims
- 0289US9139685B2Process for the preparation of a polyurethane polymer with secondary hydroxyl end groups comprising polyester polyolsNEFZGER HARTMUT·Filed 2010·Granted Sep 22, 2015·6 cites·16 claims
- 0384US8334035B2Polyester polyols from terephthalic acid and oligoalkylene oxidesNEFZGER HARTMUT·Filed 2010·Granted Dec 18, 2012·5 cites·16 claims
- 0472US9029495B2Process for producing polyether polyols having primary hydroxyl end groupsNEFZGER HARTMUT·Filed 2010·Granted May 12, 2015·1 cites·15 claims
- 0572US8481606B2Process for the production of polyester polyols with low volumes of dioxane wasteNEFZGER HARTMUT·Filed 2009·Granted Jul 9, 2013·2 cites·14 claims
- 0670US9193822B2Process for producing polyester polyols having secondary OH end groupsNEFZGER HARTMUT·Filed 2010·Granted Nov 24, 2015·1 cites·7 claims
- 0757US2008146695A1Molding CompositionsNEFZGER HARTMUT·Filed 2007·Application pending·0 cites
- 0852US2007155941A1Polyurethane cast elastomers made of NCO prepolymers based on 2,4'-MDI and a process for their preparationNEFZGER HARTMUT·Filed 2007·Application pending·0 cites
- 0950US9328196B2Process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groupsNEFZGER HARTMUT·Filed 2011·Granted May 3, 2016·0 cites·13 claims
- 1047US2008047824A1Process for the preparation of polyols and/or polyamines from polyurethanes, polyurethane ureas and polyureasNEFZGER HARTMUT·Filed 2007·Application pending·0 cites
- 1144US2013345330A1Method for producing flexible polyurethane foamsNEFZGER HARTMUT·Filed 2011·Application pending·0 cites
- 1243US2013210950A1Reaction system for preparing polyurethane microcellular foam, a polyurethane microcellular foam and the use thereofNEFZGER HARTMUT·Filed 2011·Application pending·0 cites
- 1342US2014234613A1Process for producing a rigid polyurethane-isocyanurate foamNEFZGER HARTMUT·Filed 2012·Application pending·0 cites
- 1436US9605106B2Polyester polyols made of isophthalic acid and/or terephthalic acid and oligoalkyl oxidesNEFZGER HARTMUT·Filed 2010·Granted Mar 28, 2017·0 cites·17 claims
- 1535US2012129966A1Process for producing polyester polyols with low quantities of dioxane wasteNEFZGER HARTMUT·Filed 2010·Application pending·0 cites
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