Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5797238 | Method of producing concrete structures with a surface protection and a concrete structure produced in accordance with the method | Bengt Hedberg | 1998-08-25 |
| 5082393 | Method for forming road and ground constructions | Bjorn Ringesten, Olay Berge | 1992-01-21 |
| 5024703 | Method for the production of a compound for increasing of frost-resistance of hardened concrete and the compound thus produced | Gert-Ove Gustafsson, Kare Larsson | 1991-06-18 |
| 4895598 | Stabilization of extremely lightweight aggregate concrete | Bengt Hedberg | 1990-01-23 |