Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8068616 | Methods and systems for controlling noise cancellation | David C. Copley, Scott D. Sommerfeldt | 2011-11-29 |
| 7933420 | Methods and systems for determining the effectiveness of active noise cancellation | David C. Copley, Scott D. Sommerfeldt | 2011-04-26 |