Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7111165 | Key and lock device | Rolf Norberg, Björn Magnusson, Hannu Sivonen, Gudrun Brennecke, Christophe Chanel +3 more | 2006-09-19 |
| 7099474 | Key and lock device | Rolf Norberg, Björn Magnusson, Johan Warnström, Reijo Hakkarainen, Hannu Sivonen +13 more | 2006-08-29 |
| 6822552 | Key and lock device | Rolf Norberg, Björn Magnusson, Hannu Sivonen, Gudrun Brennecke, Christophe Chanel +3 more | 2004-11-23 |