Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11365779 | Magnetic liquid damping shock absorber | Decai Li, Sijie REN | 2022-06-21 |
| 11353088 | Chain unit sealed and lubricated with magnetic fluid and chain having same | Decai Li, Siyu Chen | 2022-06-07 |
| 11261972 | Combined sealing device with magnetic fluid | Decai Li, Zepeng Li | 2022-03-01 |