Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4466900 | Process for the preparation of fluorescent brightener formulations which are stable on storage | Heinz Pfenninger | 1984-08-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4466900 | Process for the preparation of fluorescent brightener formulations which are stable on storage | Heinz Pfenninger | 1984-08-21 |