Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10015581 | Feedback microphone adaptor for noise canceling headphone | Lei Cheng, Andrew D. Munro, Benjamin G. K. Peterson | 2018-07-03 |
| 9955249 | Earpiece with movable joint | Michael O Connell | 2018-04-24 |
| 9813794 | Noise reduction with in-ear headphone | Lei Cheng, Joseph Jankovsky | 2017-11-07 |
| 9716936 | Noise reduction with in-ear headphone | Lei Cheng, Joseph Jankovsky | 2017-07-25 |
| 9635452 | Noise reduction with in-ear headphone | Lei Cheng, Joseph Jankovsky | 2017-04-25 |