Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11891771 | Devices for preventing frost heaving and thawing settlement | Yapeng Cao, Guoyu Li, Zhixiang Chen, Buxiang Wang, Dun Chen | 2024-02-06 |
| 11892101 | Anti-frost heaving supports and methods for crude oil pipelines crossing permafrost regions | Yapeng Cao, Guoyu Li, Dun Chen, Kai Gao, Gang Wu | 2024-02-06 |
| 7555705 | Annotation management in a pen-based computing system | Zheng Chen, Barn-Wan Li, Jian Wang | 2009-06-30 |