Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9795443 | Hair-growth control device and hair-growth control method | Rieko Verhagen, Guido Roosen, Michiel Errit Roersma | 2017-10-24 |
| 9622817 | Hair shortening device | Rieko Verhagen | 2017-04-18 |