Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5789557 | Reactive azo dyes with a coupler of the aminonaphthalene series | Heike Kilburg, Manfred Patsch, Hermann Loffler, Ortwin Schaffer | 1998-08-04 |
| 4988685 | Cephalosporins derivatives | Rolf Angerbauer, Karl G. Metzger, Hans-Joachim Zeiler | 1991-01-29 |