Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9863653 | Closed circulating water cooling apparatus and method | Yigong Ding, Dawei Wang | 2018-01-09 |
| 9756762 | Circulative cooling system and method for controlling circulation in the cooling system | Yigong Ding, Weizheng Yao, Jian Zhang, Dawei Wang | 2017-09-05 |
| 9596786 | Closed circulating water cooling apparatus and method | Yigong Ding, Weizheng Yao, Jian Zhang, Dawei Wang | 2017-03-14 |
| 6695333 | Chainless transmission mechanism for bicycles | Yongqiang Huang, Jinhong Zhang, Yaocai Ou, Shaofang Wu, Ronghua Xiao | 2004-02-24 |