Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618476 | Line information security interface for TAPI service provider | Steve Szeto, Stanley Douglass | 2003-09-09 |
| 5511118 | Method of providing d.c. feed to a telephone line | Joseph F. M. Darveau, Francois Tremblay, Stanley D. Rosenbaum, Reinhard W. Rosch | 1996-04-23 |