Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4233303 | Xanthine derivatives | Sten Håkan Axel Bergstrand, Per Kjellin, Carl G. A. Persson | 1980-11-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4233303 | Xanthine derivatives | Sten Håkan Axel Bergstrand, Per Kjellin, Carl G. A. Persson | 1980-11-11 |