Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872962 | Printing press | Wolfgang Scheer, Hartmut Fuhrmann, Matthias Niemitz, Detlef Kabbeck-Kupijai | 1989-10-10 |
| 4853453 | Modified silicone rubber and its use as a material for optical lenses and optical lenses made from this material | Horst Schafer, Walter Neumann | 1989-08-01 |
| 4849520 | Fusible, electrically conductive TCNQ complexes, methods for their preparation and their application | Detlef Kabbeck-Kupijai, Friedrich Jonas | 1989-07-18 |