Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10604813 | Tanning composition and method based on an acetal of an aldehydic tanning agent | Catherine Gabagnou, Grigore Daniel Herta, Jens Fennen | 2020-03-31 |
| 10087497 | Process for retanning leather | Jens Fennen, Eric KIENTZ, Florian Döppert | 2018-10-02 |