Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9813794 | Noise reduction with in-ear headphone | Lei Cheng, Ellen I. Searl | 2017-11-07 |
| 9716936 | Noise reduction with in-ear headphone | Lei Cheng, Ellen I. Searl | 2017-07-25 |
| 9635452 | Noise reduction with in-ear headphone | Lei Cheng, Ellen I. Searl | 2017-04-25 |