Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10874171 | Method for manufacturing light-weight waterproof shoe/boot | — | 2020-12-29 |
| 6666469 | Auxiliary device of monocycle | Chih-Wang Yu | 2003-12-23 |
| D460025 | Mini bicycle | Chih-Wang Yu | 2002-07-09 |
| D398267 | Bicycle frame | Chih-Wang Yu | 1998-09-15 |
| 5377397 | Bicycle downtube processing machine | Chih-Wan Yu | 1995-01-03 |