Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8072903 | Methods, systems, and computer program products for performing range-based directory number (DN) screening | — | 2011-12-06 |
| 4921292 | Magnetic attachment mechanism | William D. Harwell | 1990-05-01 |