Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882325 | Crystalline 1,1-dioxopenicillanoyloxymethyl 6-(d-amino-phenylacetamido)penicillanate napsylate and method of using the same | Welf von Daehne | 1989-11-21 |
| 4840944 | Antibacterial beta-lactams, pharmaceuticals thereof and methods of using them | Welf von Daehne | 1989-06-20 |
| 4831025 | Crystalline penicillin derivative tosylate hydrates | Welf von Daehne | 1989-05-16 |