Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4758662 | Purification of caffeine | Pierre Hirsbrunner | 1988-07-19 |
| 4531003 | Purification of caffeine | Pierre Hirsbrunner | 1985-07-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4758662 | Purification of caffeine | Pierre Hirsbrunner | 1988-07-19 |
| 4531003 | Purification of caffeine | Pierre Hirsbrunner | 1985-07-23 |