Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11814486 | Apparatus and method for mixing recycling material into a polyester melt | Alexander PAWELSKI, Heinrich Koch, Christopher J. Hess | 2023-11-14 |
| 9707702 | Drying-/degassing device and also device and method for the direct production of moulded articles from polyester melts | Heinrich Koch | 2017-07-18 |