Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11054407 | Gas logging system | Youhong Sun, Zhiyong CHANG, Xiaohui WENG, Baochang Liu, Renchu Guan +6 more | 2021-07-06 |
| 9908746 | Elevator system sound reducing assembly and method | Zheng Yu, Senzo Alberto Naruke, Takeshi Minowa | 2018-03-06 |