Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5603948 | Active ingredient patch for low-melting and/or volatile active ingredients | Hans P. Merkle, Klaus Nagels, Dietrich Schacht | 1997-02-18 |
| 5527536 | Active ingredient patch for low-melting and/or volatile active ingredients | Hans P. Merkle, Klaus Nagels, Dietrich Schacht | 1996-06-18 |
| 5498418 | Nitroglycerine plaster and process for its production | Dieter Beutner, Henning von Knobelsdorff, Rainer Hoffmann, Reinhold Meconi, Robert-Peter Klein | 1996-03-12 |
| 5393529 | Estrogen-containing active substance plaster | Hans-Rainer Hoffmann, Robert-Peter Klein, Reinhold Meconi, Gunter Cordes | 1995-02-28 |