Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599885 | Derivatives of erythromycin, clarithromycin, roxithromycin or azithromycin with antibiotic and mucolytic activity | Helmut Schickaneder, Gesine Hermann | 2003-07-29 |
| 6469213 | Tramadol, salts thereof and process for their preparation | Helmut Schickaneder | 2002-10-22 |
| 5663381 | Process for preparing form 1 ranitidine hydrochloride | Helmut Schickaneder | 1997-09-02 |