Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135798 | Multilayer, flexible transfer strip | Ernst Kunkel, Petra Bubolz, Wolfhard Rutz | 1992-08-04 |
| 4891260 | Multilayer flexible transfer ribbon | Ernst Kunkel, Petra Bubolz, Wolfhard Rutz | 1990-01-02 |