Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6196250 | Pressure balanced valve assembly | Hung-Yin Chen | 2001-03-06 |
| 6176250 | Pressure balanced valve assembly for proportionally mixing hot water and cold water entering therein | Hung-Yin Chen | 2001-01-23 |