Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10273657 | Variable-speed volume-control direct-drive all-electric hydraulic excavator driving and energy recovery system | Long Quan, Huimin Hao, Jiahai Huang, Bing Wu | 2019-04-30 |
| 6770681 | Foamable copolymer resin and a method for preparing the same | Suoyun Tang, Guohua Lu, Jingwu Hong | 2004-08-03 |