Inventor
HENGSTERMANN AXEL
DE16 patents
⚠️ This page may combine multiple inventors who share the name “HENGSTERMANN AXEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EVONIK DEGUSSA GMBH
5 patentsUS8895683B2Nov 25, 2014
Superabsorbent polymers and methods of making the same
EVONIK DEGUSSA GMBH18 citations91
US10392340B2Aug 27, 2019
Purification of crude isophoronediamine by partial condensation in series with total condensation
EVONIK DEGUSSA GMBH7 citations80
US10519096B2Dec 31, 2019
Process for preparing amino compounds from nitrile compounds
EVONIK DEGUSSA GMBH0 citations48
US7807826B2Oct 5, 2010
Purification of a crude lactam mixture by means of melt crystallization
EVONIK DEGUSSA GMBH1 citations47
US10343975B2Jul 9, 2019
Coupling of distillative purification with a partial condenser for pre-purification of isophoronediamine
EVONIK DEGUSSA GMBH0 citations35
NITZ JOERG-JOACHIM
3 patentsUS9878979B2Jan 30, 2018
Fine purification of isophoronenitrile by melt crystallization
NITZ JOERG-JOACHIM6 citations82
US9868699B2Jan 16, 2018
Process for removing cations from an isophoronenitrile product mixture
NITZ JOERG-JOACHIM6 citations70
US9035102B2May 19, 2015
Hydrolysis of the residues obtained in the production of isophorone to recover isophorone and acetone
NITZ JOERG-JOACHIM1 citations46