Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D444457 | Speaker cabinet | — | 2001-07-03 |
| D441352 | Music equipment cabinet | — | 2001-05-01 |
| D435351 | Picture frame | Lin-Hsiang Hsieh, David Han | 2000-12-26 |
| D430142 | Combined speaker and base therefor | Wang Yang Chang, David Han | 2000-08-29 |