Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE50530 | Post-page caller name identification system | — | 2025-08-12 |
| RE48847 | Post-page caller name identification system | — | 2021-12-07 |
| 8861698 | Post-page caller name identification system | — | 2014-10-14 |
| 7421422 | Method for graphical interaction with geographic databases for interactive broadcast presentation | Douglas George Dempster, William R. Dow, Jr. | 2008-09-02 |