Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990649 | Azulenesquaric acid dyes that contain urethane groups | Wolfgang Schrott, Peter Neumann, Michael Schmitt, Sibylle Brosius, Klaus D. Schomann | 1991-02-05 |
HK
Harald Kuppelhamier
Overall (All Time): #3,869,342 of 4,157,543Top 95%
1
Patents All Time