Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12339250 | Magnetic flux leakage and electromagnetic acoustic transducer joint testing device and method for drill pipe at wellhead | Jianbo Wu, Chengjun Deng | 2025-06-24 |
| 11318407 | Air purifier and a method for controlling an air purifier | Catherine Wei, JING SU, Declan Patrick Kelly, Zhiqiang Zhang | 2022-05-03 |
| 10948207 | Air purifier and air purification method | RUIFENG XUE, Shan Zhu, Shuang Chen | 2021-03-16 |
| 10712028 | Air purifier with extended humidity working range | JING SU, Ming Sun | 2020-07-14 |