Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1067966 | Sleep mask | — | 2025-03-25 |
| 12226350 | Sleeping eyeshade | — | 2025-02-18 |
| 12188521 | Rolling bearing with fully-filled plastic oil and manufacturing method therefor | Lianchun ZHAO, Zhiwu Zheng, Sicheng Zhao | 2025-01-07 |
| 11293086 | Connecting device and internal plasma spraying system | Guozheng Ma, Haidou Wang, Pengfei He, Ming Liu, Haijun Wang +4 more | 2022-04-05 |
| 11015650 | Manufacturing method of thin-wall bearing and method for machining thin-wall inner ring/outer ring of the thin-wall bearing as well as precise flexible bearing | Sicheng Zhao, Lianchun ZHAO | 2021-05-25 |
| 10843571 | Repairable sliding plate of pantograph of electric locomotive and method for making the same | Guozheng Ma, Haidou Wang, Yiwen Wang, Pengfei He, Ming Liu +3 more | 2020-11-24 |
| 10752983 | System and process for remanufacturing waste cylinder assembly of aircraft piston engine | Haidou Wang, Guozheng Ma, Pengfei He, Fajun Ding, Yiwen Wang +3 more | 2020-08-25 |