Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11647113 | System and method for limiting incoming spam calls | Gordon L. Hole, Marvin J. Severson | 2023-05-09 |
| 11184480 | System and method for limiting incoming spam calls | Gordon L. Hole, Marvin J. Severson | 2021-11-23 |
| 10523815 | System and method for limiting incoming spam calls | Gordon L. Hole, Marvin J. Severson | 2019-12-31 |
| 6167129 | Method and apparatus for signal mediation in a common channel signaling network | Gerald W. Fikis, H. Stewart Patch, Michael J. Mueller, Venkat Ravishankar, Dean D. Glenn +3 more | 2000-12-26 |