Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339238 | Stable aqueous formulations of stilbene fluorescent whitening agents | Werner Fringeli | 1982-07-13 |
| 4313733 | Assistant mixture for the dyeing or fluorescent brightening | Jacques Zurbuchen, Jean P. Luttringer | 1982-02-02 |