Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689171 | Anthraquinone dyestuffs, their preparation and use and dichroic material containing these anthraquinone dyestuffs | Uwe Claussen, Friedrich W. Krock, Rutger Neeff | 1987-08-25 |
| 4596666 | Aryl-mercapto anthraquinone dyestuffs, their preparation and use and dichroic material containing aryl-mercapto anthraquinone dyestuffs | Uwe Claussen, Friedrich W. Krock, Rutger Neeff | 1986-06-24 |
| 4585574 | Anthraquinone dyestuffs, processes for their preparation, their use, and liquid-crystalline materials containing anthraquinone dyestuffs | Uwer Claussen, Rutger Neeff | 1986-04-29 |