Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10746245 | Shopping cart foot wheel capable of warning the abrasion status of the braking block | Yu-Shu Shen | 2020-08-18 |
| 6490739 | Plug for a sink drain | — | 2002-12-10 |
| 6334463 | Inner pipe for a faucet | — | 2002-01-01 |
| 5240297 | Tamperproof bag security seal | — | 1993-08-31 |
| 5087089 | Bag security seal and method of manufacturing same | — | 1992-02-11 |