Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5840902 | Process for the preparation of beta-hydroxyalkypicolinium salts | Karlheinrich Meisel, Klaus Walz, Gerd-Friedrich Renner, Hans Schulze, Carsten Gerdes +2 more | 1998-11-24 |
| 4369293 | Catalyst for the preparation of bisphenols | Frieder Heydenreich, Claus Wulff, Hans-Jurgen Meissner, Norbert Bachem | 1983-01-18 |