Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10502038 | Combined operation method for work modes of walking beam pumping unit | Min Zhang, Mingting Han, Jie Zhang | 2019-12-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10502038 | Combined operation method for work modes of walking beam pumping unit | Min Zhang, Mingting Han, Jie Zhang | 2019-12-10 |