Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10081906 | Method for carpet washing and a carpet washing service | Risto Kunnas, Arvo Lahtinen | 2018-09-25 |
| 9278380 | Carpet washing equipment and method for washing a carpet with the carpet washing equipment | Risto Kunnas, Arvo Lahtinen | 2016-03-08 |