P

Inventor

WITTKOWSKI ANDREA

DE5 patents
⚠️ This page may combine multiple inventors who share the name “WITTKOWSKI ANDREA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ROEHM GMBH

3 patents
US6639099B1Oct 28, 2003

Process for synthesis of Di(meth)acrylic acid esters

ROEHM GMBH20 citations87
US6936734B2Aug 30, 2005

Process for manufacturing unsaturated carboxylic acid anhydrides

ROEHM GMBH10 citations71
US11447579B2Sep 20, 2022

Concrete flow improvers and water reducers

ROEHM GMBH0 citations60

EVONIK ROEHM GMBH

1 patent
US11414373B2Aug 16, 2022

Glycerol (meth)acrylate carboxylic ester having a long shelf life

EVONIK ROEHM GMBH4 citations71

EVONIK OPERATIONS GMBH

1 patent
US12410118B2Sep 9, 2025

Glycerol (meth)acrylate carboxylic ester having a long shelf life

EVONIK OPERATIONS GMBH0 citations60