Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955049 | Method of supervising mobile telephone subscriptions in a mobile telephone system | — | 1990-09-04 |
| 4456940 | Voltage controlled transient protection unit | Lars E. Hammerberg, Royne Gunnar Hjortendal | 1984-06-26 |