Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1075423 | Vacuum grain storage barrel | Youming Yang, Kehua Wu | 2025-05-20 |
| 10851448 | High performance titanium connecting sealing ring for deep-sea oil drilling and production device and processing method | Zicheng Sun, Min Sun | 2020-12-01 |