Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889856 | 7,8-dihydro-4-(1-pierazinyl)-6H-thiopyrano-[3,2-d] pyrimidines as .beta.-blockers | Richard L. Tolman, John J. Baldwin, Adolph M. Pietruszkiewicz | 1989-12-26 |
| 4801710 | Regioselective synthesis of 9-substituted purine acyclonucleoside derivatives | Malcolm MacCoss, Richard L. Tolman, John Hannah | 1989-01-31 |