Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11179679 | Tubular membrane with a helical ridge, as well as a method and apparatus for producing such a tubular membrane | Stefan Koel, Jens Potreck | 2021-11-23 |
| 10399038 | Tubular membrane with a helical ridge, as well as a method and apparatus for producing such a tubular membrane | Stefan Koel, Jens Potreck | 2019-09-03 |