Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6652597 | N-vinyl-containing polymeric tanning materials | Anton Negele, Gerhard Wolf, Axel Kistenmacher | 2003-11-25 | $521,000 |
| 6316533 | Composition for treating tanned leather, and its preparation | Gerhard Wolf, Thomas Grosser, Adolf Stubinger, Jürgen Werner, Erhard Guenther | 2001-11-13 | $255,000 |