Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5896447 | Method for accommodating ported directory numbers affected by call block controls implemented in a telecommunications network | Susan Maureen Harrigan, Wayne R. Kalbow, John Russell, Barbara Joan Schlaman, Susan Marie Trebs | 1999-04-20 |