Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5587465 | 5-chloro-4-fluoropyrimidinyl substituted diazopyridone | Karl-Heinz Sch undeh utte | 1996-12-24 |
| 5359041 | Pyridone dyestuffs | Wolfram Reddig | 1994-10-25 |
| 4591634 | Trisazo/azoxy dyestuff mixtures | Horst Nickel | 1986-05-27 |
| 4559296 | Photographic recording material containing new azo dyes | Peter Bergthaller, Lothar Rosenhahn, Hauke Fuerstenwerth, Rudolf Stolzenburg | 1985-12-17 |