Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4216108 | Hardening solution for proteinaceous materials | Francis J. Sels, Hendrik E. Kokelenberg | 1980-08-05 |
| 4201585 | Photographic bleach compositions containing bleach-accelerating compounds | Robert J. Pollet, Camille Angelina Vandeputte, Francis J. Sels | 1980-05-06 |
| 4187114 | Hardening proteinaceous materials | Hendrik E. Kokelenberg, Francis J. Sels | 1980-02-05 |
| 4181529 | Hardening of proteinaceous materials | Francis J. Sels, Hendrik E. Kokelenberg | 1980-01-01 |