Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847273 | Dihydropyridine derivatives | Henri Ramuz | 1989-07-11 |
| 4808605 | Tetrahydronaphthalene derivatives as calcium antagonists | Quirico Branca, Hans P. Maki, Franzi Marti | 1989-02-28 |