Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8897756 | Call-tracking | Robert Skog | 2014-11-25 |
| 7196825 | Printer pen | Nils Rydbeck, Örjan Johansson, Peter Danielsson, Stefan Hellqvist | 2007-03-27 |
| 6738800 | Method and apparatus for organizing and accessing electronic messages in a telecommunications system | Adam Aquilon, Stefan Willehadson | 2004-05-18 |
| 6327567 | Method and system for providing spatialized audio in conference calls | Stefan Willehadson, Hans Hall | 2001-12-04 |
| 6032051 | Wireless mobile comunication devices for group use | Hans Hall, Stefan Willehadson | 2000-02-29 |