Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12264654 | Energy storage device and power generation floor with the same | Pengfei Qin | 2025-04-01 |
| 12186612 | Tension force stepless adjustment counterweight power generating mechanism and fitness equipment with the same | Pengfei Qin | 2025-01-07 |