Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639983 | Adaptable line driver interface for digital telephone systems | Steven DeNies, Robert Fritzinger | 2003-10-28 |
| 5999593 | System and method for automatic PBX detection | Guillermo Damian Krawiec | 1999-12-07 |