Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434702 | Plug and valve integrated cone valve pump with combined type movable and fixed three cylinders and two spiral centralizers | Xinfu Liu, Chunhua Liu, Chao Zhou, Jianjun Wu, Peng Gao | 2022-09-06 |