Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4226994 | Process for making 4-methyl-4,5-dihydrotetrazolo [1,5-a] quinazolin-5-one | John H. Marsden | 1980-10-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4226994 | Process for making 4-methyl-4,5-dihydrotetrazolo [1,5-a] quinazolin-5-one | John H. Marsden | 1980-10-07 |