Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10174213 | Coating system | Juliane Kruesemann, Rainer Henning, Annegret Pietsch, Claudia Sierakowski, Tom Landuydt | 2019-01-08 |
| 5759246 | Ink with time dependent characteristics | Isaiah Lieberman | 1998-06-02 |
| 5600443 | Method of determining the age of ink having time dependent characteristics | Isaiah Lieberman | 1997-02-04 |
| 5393626 | Increasing photoconductivity by adjusting the discotic phase | Friedrich Closs, Dirk Funhoff, Karl Siemensmeyer, Helmut Ringsdorf, Dietrich Haarer +1 more | 1995-02-28 |