Assignee
NEFZGER HARTMUT
DE8 patents
Top patents by PatentIndex Score
US8273846B2Sep 25, 2012
Polyurethane and polyurethane urea elastomers based on polycarbonate polyols
NEFZGER HARTMUT16 citations83
US9139685B2Sep 22, 2015
Process for the preparation of a polyurethane polymer with secondary hydroxyl end groups comprising polyester polyols
NEFZGER HARTMUT6 citations72
US8481606B2Jul 9, 2013
Process for the production of polyester polyols with low volumes of dioxane waste
NEFZGER HARTMUT2 citations58
US8334035B2Dec 18, 2012
Polyester polyols from terephthalic acid and oligoalkylene oxides
NEFZGER HARTMUT5 citations58
US9328196B2May 3, 2016
Process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groups
NEFZGER HARTMUT0 citations51
US9193822B2Nov 24, 2015
Process for producing polyester polyols having secondary OH end groups
NEFZGER HARTMUT1 citations51
US9029495B2May 12, 2015
Process for producing polyether polyols having primary hydroxyl end groups
NEFZGER HARTMUT1 citations51
US9605106B2Mar 28, 2017
Polyester polyols made of isophthalic acid and/or terephthalic acid and oligoalkyl oxides
NEFZGER HARTMUT0 citations31