Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12259863 | Retrieval apparatus, methods, and storage medium | Chao Xie, Weizhi Xu, Mengzhao Wang, Xiaomeng Yi | 2025-03-25 |
| 9163531 | Self-adaptive hydraulic variable valve timing system for diesel engine and control method | Wanhua Su, Qiang Zhan, Yiqiang Pei, Erxi Liu | 2015-10-20 |
| 9116591 | Method and apparatus for scroll information input in electromagnetic induction way | Yingjian Liu, Honggang Wang | 2015-08-25 |
| 8797300 | Method for measuring distance between coordinate indicator and coordinate input device | Yingjian Liu, Guowei Xiang, Yu Tian | 2014-08-05 |