Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11795255 | Method for producing paper or cardboard | Hans-Joachim Haehnle, Ralph Isermann | 2023-10-24 |
| 11680371 | Method for producing multi-layer paper | Christoph Hamers, Frans De Bruyn, Christopher Alan Gray, Ralph Isermann | 2023-06-20 |