Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D830026 | Window cleaning appliance | Matthias Helfert | 2018-10-02 |
| D828665 | Window cleaning appliance | Matthias Helfert | 2018-09-11 |
| D818231 | Window cleaning appliance | Matthias Helfert | 2018-05-15 |