Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10732650 | Vacuum large-capacity electrically controlled proportional valve | Ping-Cheng Yu, Chih-Sheng Cheng | 2020-08-04 |
| 10704701 | Vacuum electrically controlled proportional valve | Ping-Cheng Yu, Chih-Sheng Cheng | 2020-07-07 |