Issued Patents 2024
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12104459 | Seal for repeatedly switchable stepless fracturing sliding sleeve | Zeming Qin, Houning Li | 2024-10-01 |
| 12057281 | Direct current contactor and vehicle | Yang Zhu, Taixian Chen | 2024-08-06 |