Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9319523 | Methods and apparatus for providing expanded telecommunications service | Leland W. Kirchhoff, David S. Trandal, Colin D. Kelley, Robert F. Smith, David F. Hofstatter +1 more | 2016-04-19 |
| 9258412 | Enhanced service levels for call-processing services | David S. Trandal, David F. Hofstatter, Robert F. Smith | 2016-02-09 |