Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11517163 | Retaining plate for a vacuum cleaner filter bag, having a closure device | Ralf Sauer | 2022-12-06 |
| 11504662 | Vacuum cleaner filter bag made from recycled plastic | Ralf Sauer | 2022-11-22 |