Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859680 | Pyrimidine derivatives as antiviral compounds | Wallace T. Ashton, Richard L. Tolman | 1989-08-22 |
| 4617304 | Purine derivatives | Wallace T. Ashton, Richard L. Tolman | 1986-10-14 |