Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804664 | Method and pharmaceutical preparation for treating chronic obstructive airway disease and cardiac disease, and intermediates for the preparation of therapeutically active xanthine derivatives | Per Kjellin | 1989-02-14 |
| 4644001 | 3-Alkylxanthines, composition and methods for the treatment of chronic obstructive-airway disease and cardiac disease | Per Kjellin | 1987-02-17 |
| 4548818 | Composition and methods for the treatment of chronic obstructive airway disease and cardiac disease using 3-alkylxanthines | Per Kjellin | 1985-10-22 |
| 4546182 | 3,8-Dialkylxanthines | Per Kjellin | 1985-10-08 |
| 4338319 | Method for the treatment of chronic obstructive airway or cardiac diseases | Per Kjellin | 1982-07-06 |
| 4325956 | Method and pharmaceutical preparation for treating chronic obstructive airway disease and cardiac disease, and intermediates for the preparation of therapeutically active xanthine derivatives | Per Kjellin | 1982-04-20 |
| 4233303 | Xanthine derivatives | Sten Håkan Axel Bergstrand, Per Kjellin, Lars M. Sorenby | 1980-11-11 |