Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5466263 | Process for dyeing fur skins with oxidation dyes | Josef Hurt | 1995-11-14 |
| 4709074 | Urethanes containing perfluoroalkyl and epichlorohydrin groups | Heinrich Bathelt, Winfried Ehrl, Frank Wehowsky, Rolf Kleber, Werner Lotz +5 more | 1987-11-24 |