Inventor
KLESCZEWSKI BERT
DE16 patents
⚠️ This page may combine multiple inventors who share the name “KLESCZEWSKI BERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COVESTRO DEUTSCHLAND AG
8 patentsUS10106641B2Oct 23, 2018
Mixtures of polyether carbonate polyols and polyether polyols for producing polyurethane soft foams
COVESTRO DEUTSCHLAND AG18 citations85
US11130842B2Sep 28, 2021
Process for the preparation of polyether polyols
COVESTRO DEUTSCHLAND AG2 citations73
US10233298B2Mar 19, 2019
Polyurethane foams based on polyether carbonate polyols
COVESTRO DEUTSCHLAND AG2 citations72
US9714216B2Jul 25, 2017
Use of urethane alcohols for preparation of polyether polyols
COVESTRO DEUTSCHLAND AG3 citations70
US10487175B2Nov 26, 2019
Use of alcohols containing at least two urethane groups for preparation of polyether polyols
COVESTRO DEUTSCHLAND AG1 citations61
US10519276B2Dec 31, 2019
Use of alcohols which contain at least two urethane groups for producing polyether carbonate polyols
COVESTRO DEUTSCHLAND AG0 citations51
US11345775B2May 31, 2022
Polyurethane foams based on polyethercarbonate polyols
COVESTRO DEUTSCHLAND AG0 citations47
US9957352B2May 1, 2018
Use of urethane alcohols for preparing polyether carbonate polyols
COVESTRO DEUTSCHLAND AG0 citations38
BAYER AG
3 patentsNEFZGER HARTMUT
3 patentsUS9139685B2Sep 22, 2015
Process for the preparation of a polyurethane polymer with secondary hydroxyl end groups comprising polyester polyols
NEFZGER HARTMUT6 citations72
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