Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10109294 | Adaptive echo cancellation | Robert Ayrapetian, Philip Ryan Hilmes | 2018-10-23 |
| 9997151 | Multichannel acoustic echo cancellation for wireless applications | Robert Ayrapetian, Philip Ryan Hilmes | 2018-06-12 |
| 9966086 | Signal rate synchronization for remote acoustic echo cancellation | Kurt Piersol, Preethi Parasseri Narayanan, Robert Ayrapetian, Arnaud Jean-Louis Charton, Gabe Beddingfield +1 more | 2018-05-08 |