Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6345181 | Charging criteria for a call in a cellular mobile network | Markku Tuohino, Veli Turkulainen | 2002-02-05 |
| 6115600 | Method for improving charging criteria in a mobile telephone network | Markku Tuohino, Veli Turkulainen | 2000-09-05 |
| 6023618 | Method for improving charging criteria in a mobile telephone network | Markku Tuohino, Erkki Ojala | 2000-02-08 |