Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7300474 | Aqueous liquid formulations of pyrazoline brighteners | Alexander Lerch | 2007-11-27 |
| 5322941 | Process for the preparation of pyrene compounds | Bernhard Mees | 1994-06-21 |