Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12223032 | Password protection method and apparatus, and medium | Rengang Li | 2025-02-11 |
| 10233694 | Dynamic inwardly eccentrically-placed directional drill bit type rotation guidance apparatus | Wei Li, Hongxiang Lei, Qingyou Liu, Shihong Xiao, Xu Si +8 more | 2019-03-19 |