Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10378667 | Vacuum breaker | Chung-Yi Huang | 2019-08-13 |
| 10017922 | Hydrant device with vacuum breaking function | Chung-Yi Huang | 2018-07-10 |
| 9719235 | Full-drain type vacuum breaker | Chung-Yi Huang | 2017-08-01 |