Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7031693 | Method and system for refilling mobile telephone prepaid phone cards via electronic distribution of refill codes | Fredrik Öhrström, Martin Wingert, Peter Edsbäcker, Mikael Signarsson | 2006-04-18 |