Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135798 | Multilayer, flexible transfer strip | Sigo Muschter, Ernst Kunkel, Wolfhard Rutz | 1992-08-04 |
| 4891260 | Multilayer flexible transfer ribbon | Ernst Kunkel, Wolfhard Rutz, Sigo Muschter | 1990-01-02 |
| 4874811 | Alkaline aqueous universal adhesive containing poly(meth-)acrylate | Jürgen Borchers | 1989-10-17 |