Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10767450 | Sand control screen for heavy oil thermal recovery | Boren Li, Zhenxiang WANG, Qiansheng ZHUANG, Shanyin Chen, Miaoren Liu +4 more | 2020-09-08 |
| 9745809 | Liner hanger top packer | Bingzhou Tian, Shanyin Chen, Baisong Ding, Zhien Zan, Boren Li +4 more | 2017-08-29 |
| 8053509 | Starch-(meth)acrylate graft copolymer, oil-swellable material and oil- and water-swellable material comprising the same, and sealing articles and packers prepared from said swellable material | Qiang Wang, Aili Cao | 2011-11-08 |