Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11221006 | Device for wetting a plurality of threads, and metering pump for such a device | Michael Schröder, Dietrich Witzler | 2022-01-11 |
| 9289732 | Dynamic mixer | Ulrich Helbing, Dietrich Witzler | 2016-03-22 |