Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9863407 | Hydraulic oil cylinder, hydraulic cushion system, excavator and concrete pump truck | Xiaogang Yi, Bingbing Chen | 2018-01-09 |
| 9394927 | Hydraulic oil cylinder and related equipments, hydraulic buffer system, excavator and concrete pump truck | Xiaogang Yi, Bingbing Chen | 2016-07-19 |
| 8525993 | Scatterometry measurement of asymmetric structures | Silvio J. Rabello, William A. McGahan, Jie Li | 2013-09-03 |
| 7450225 | Correction of optical metrology for focus offset | Zhuan Liu, Yudong Hao, Ye Feng | 2008-11-11 |