Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8670536 | Enhanced service levels for call-processing services | David S. Trandal, David J. Brahm, David F. Hofstatter | 2014-03-11 |
| 8165278 | Enhanced service levels for call-processing services | David S. Trandal, David J. Brahm, David F. Hofstatter | 2012-04-24 |
| 7742586 | Enhanced service levels for call-processing services | David S. Trandal, David J. Brahm, David F. Hofstatter | 2010-06-22 |