Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669750 | Access port for house vacuum equipped with removable trap | Jason Liao, Jun-Sheng Hsu, Wan-ly Chen | 2003-12-30 |
YC
Yeay-Cin Chen
Overall (All Time): #3,532,941 of 4,157,543Top 85%
1
Patents All Time