Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5539802 | System for testing the billing function in a telecommunication system | Iwar De Caluwe, Mark A. Hensbergen, Gregorius B. Huitema, Jaap Kleerebezem, Geert J. Meijer | 1996-07-23 |