Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7676854 | Helmet, helmet liner and method for manufacturing the same | Jan Berger, Ulf Tolfsen, Roy Kristiansen | 2010-03-16 |
| 6802537 | Arrangement and method for height adjustment of the upper attachment point of a safety belt | Ulf Tolfsen | 2004-10-12 |
| 5579202 | Transformer device | Ulf Tolfsen, Nils S. Syvertsen | 1996-11-26 |
| 5522311 | Beverage container compacting device having endless belts with puncturing members | Åsmund Birger DAGSLET | 1996-06-04 |