Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897395 | Treatment with dialkoxy pyridopyrimidines | David Duch, Charles A. Nichol | 1990-01-30 |
| 4661490 | Treatment with dialkoxy pyridopyrimidines | David Duch, Charles A. Nichol | 1987-04-28 |
| 4512992 | Treatment with dialkoxy pyridopyrimidine compounds | David Duch, Charles A. Nichol | 1985-04-23 |
| 4372957 | Treatment with dialkoxy pyridopyrimidines | David Duch, Charles A. Nichol | 1983-02-08 |