Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845030 | Use of aniline derivates as coupling components in oxidative color formation reactions | Hans-Georg Batz, Rupert Herrmann, Helmut Schlumberger | 1989-07-04 |
| 4822807 | Pharmaceutical composition containing a stable modification of torasemide | Gustav Lettenbauer | 1989-04-18 |