Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7111165 | Key and lock device | Inge Lidén, Rolf Norberg, Björn Magnusson, Hannu Sivonen, Gudrun Brennecke +3 more | 2006-09-19 |
| 7099474 | Key and lock device | Inge Lidén, Rolf Norberg, Björn Magnusson, Johan Warnström, Reijo Hakkarainen +13 more | 2006-08-29 |
| 6851292 | Lock-key system | — | 2005-02-08 |
| 6822552 | Key and lock device | Inge Lidén, Rolf Norberg, Björn Magnusson, Hannu Sivonen, Gudrun Brennecke +3 more | 2004-11-23 |
| 4805428 | Lock and key | — | 1989-02-21 |
| 4662197 | Magnetic lock | Werner Tietz | 1987-05-05 |