Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888345 | 4,8-disubstituted-1,2-dihydro and 1,2,3,4-tetrahydroimidazo-[1,5-a] pyrimidines | John P. Dusza, Joseph W. Epstein | 1989-12-19 |
| 4847256 | 4,5-dihydro and 4,5,6,7-tetrahydropyrazolo(1,5-A)-pyrimidines | John P. Dusza, Joseph W. Epstein | 1989-07-11 |