Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6169737 | Establishing telecommunication connections | Ulf Hansson, Fredrik Olsson | 2001-01-02 |
| 6157639 | Time switch stages and switches | Ulf Hansson, Fredrik Olsson | 2000-12-05 |