Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10652029 | Multi-TTP-based method and device for verifying validity of identity of entity | Zhiqiang Du, Bianling Zhang, Qin Li, Guoqiang Zhang | 2020-05-12 |
| 10615978 | Multi-TTP-based method and device for verifying validity of identity of entity | Zhiqiang Du, Bianling Zhang, Qin Li, Guoqiang Zhang | 2020-04-07 |