Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10435353 | Method for producing isocyanates | Joachim Zechlin, Friedhelm Steffens, Dietmar Wastian | 2019-10-08 |
| 10189945 | Method for producing light-coloured TDI-polyisocyanates | Josef Sanders, Andreas Hecking, Reinhard Halpaap, Frank Richter, Oswald Wilmes +2 more | 2019-01-29 |