Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5114935 | Substituted 6-benzyl-2H-3,4,5,6-tetrahydro-(1,3)-oxazines | Gunther Engelhardt, Claus A. Landgraf, Norbert Mayer, Willy Roth, Kurt Schumacher +1 more | 1992-05-19 |
| 4678792 | Quaternary 3,4-dihydro-isoquinolinium salts | Josef Nickl, Erich Muller, Benthold Narr, Walter Haarmann | 1987-07-07 |