Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4288595 | 7-(Substituted)-7H-pyrrolo[3,2-f]quinazoline-1,3-diamines | by David R. Howes, executor | 1981-09-08 |
| 4233445 | 7-(Substituted)-7H-pyrrolo[3.2-F]-quinazoline-1,3-diamines | by David R. Howes, executor | 1980-11-11 |
| 4208520 | 7-(Substituted)-7H-pyrrolo[3,2-f]quinazoline-1,3-diamines | by David R. Howes, executor | 1980-06-17 |