Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10447481 | Systems and methods for authenticating caller identity and call request header information for outbound telephony communications | Huahong Tu, Gail-Joon Ahn, Ziming Zhao | 2019-10-15 |