Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5409918 | Crystalline cephem acid addition salts and process for their preparation | Friedhelm Adam, Walter Durckheimer, Dieter Isert | 1995-04-25 |
| 5306717 | Cephalosporin derivatives | Friedhelm Adam, Walter Durckheimer, Gerd Fischer, Gerhard Seibert, Dieter Isert +1 more | 1994-04-26 |
| 4590267 | Crystalline disodium salt of cefodizim | Karl-Heinz Scheunemann, Jurgen Blumbach, Walter Durckheimer, Klaus Fleischmann | 1986-05-20 |
| 4454129 | Cephem derivatives | Eberhard Ehlers, Jurgen Blumbach, Walter Durckheimer, Karl Seeger | 1984-06-12 |