Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8121260 | Method and apparatus for retraining of echo cancellation | Mark Raifel, Yakov Chen | 2012-02-21 |
| 7949125 | Method and apparatus for transmitting signaling tones over a packet switched network | Mark Raifel, Leon Bialik | 2011-05-24 |