Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D980966 | Noise reduction earplug | Hao Hu, Feng Cui, Xiangen Zhao | 2023-03-14 |
| 8244527 | Audio signature extraction and correlation | Venugopal Srinivasan, Daozheng Lu | 2012-08-14 |
| 7672843 | Audio signature extraction and correlation | Venugopal Srinivasan, Daozheng Lu | 2010-03-02 |