Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10755516 | Hanging rod control device for display rack | Tong Tsan Chien, Chia Ling Hsieh, Yao Ling Chang | 2020-08-25 |
| 10521995 | Crane or hanger-type cargo lane device | Tong Tsan Chien, Chia Ling Hsieh, Yao Ling Chang | 2019-12-31 |