Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D583158 | Sustainable frame | Ching-Hui Yen | 2008-12-23 |
| 7392969 | Height adjusting structure | Ching-Hui Yen | 2008-07-01 |
| D562114 | Sustain frame | Ching-Hui Yen | 2008-02-19 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D583158 | Sustainable frame | Ching-Hui Yen | 2008-12-23 |
| 7392969 | Height adjusting structure | Ching-Hui Yen | 2008-07-01 |
| D562114 | Sustain frame | Ching-Hui Yen | 2008-02-19 |