Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4949574 | Testing device for vehicle tires | Erkki Suvanto | 1990-08-21 |
| 4919180 | Fixed or sleeve-mounted spike, fitted on a vehicle tire | — | 1990-04-24 |
| 4919181 | Fixed spike or sleeve-mounted spike fitted on a vehicle tire | Erkki Suvanto | 1990-04-24 |
| 4884608 | Spike fitted on a vehicle tire for perpendicular contact with the road | — | 1989-12-05 |
| 4871005 | Vehicle tire intended to be fitted with spikes | — | 1989-10-03 |
| 4865100 | Sleeve-mounted spike fitted to a vehicle tire | Erkki Suvanto, Ainetdin Farid | 1989-09-12 |