Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270882 | Flexible, multi-layer film having elevated stiffness, dimensional stability and flex crack resistance | Holger Eggers, Rainer Brandt, Bernd Sperlich | 2001-08-07 |
| 5230948 | Metal-free barrier-layer films | Holger Preiss, Richarda Bochow | 1993-07-27 |
| 5145731 | Composite films free from metal layers | Holger Preiss | 1992-09-08 |