Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12427759 | Biodegradable multi-layer film | Ralf Hackfort, Johannes Mathar, Harald Schmidt, Christoph Hess | 2025-09-30 |
| 11358378 | Biodegradable multi-layer film | Ralf Hackfort, Johannes Mathar, Harald Schmidt, Christoph Hess | 2022-06-14 |
| 10131783 | Polymer composition | Harald Schmidt, Christoph Hess, Christophe Bréso, Ralf Hackfort, Wolfgang Friedek | 2018-11-20 |