Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872962 | Printing press | Wolfgang Scheer, Hartmut Fuhrmann, Gerhard Kossmehl, Matthias Niemitz | 1989-10-10 |
| 4849520 | Fusible, electrically conductive TCNQ complexes, methods for their preparation and their application | Gerhard Kossmehl, Friedrich Jonas | 1989-07-18 |