Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4271260 | Positive nonsilver washout systems containing dihydropyridines and photooxidants | Werner Abele, Mario Grossa | 1981-06-02 |
| 4181531 | Positive non-silver systems containing nitrofuryldihydropyridine | — | 1980-01-01 |