Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7223820 | Amine hardener for epoxy resins | Walter Fischer, Isabelle Frischinger, Rolf Wiesendanger | 2007-05-29 |
| 6759506 | Polymercaptopolyamines as epoxy resin hardeners | Walter Fischer, Isabelle Frischinger, Rolf Wiesendanger | 2004-07-06 |
| 4861861 | Saturated polyesters containing imide groups and terminal carboxyl groups | — | 1989-08-29 |