Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11052927 | Railroad hopper car | Liangcai Lin, Biaowen Xiang, Chuqiang Tang, Hong Cui, Yueming Hu +4 more | 2021-07-06 |
| 7043948 | Resettable combination lock | — | 2006-05-16 |
| 6334346 | Numeral lock with resettable feature | — | 2002-01-01 |
| 5284037 | Automotile steering lock | Shih-Yu Chen | 1994-02-08 |
| D339734 | Automobile steering wheel lock | Shih-Yu Chen | 1993-09-28 |
| D339519 | Automobile steering wheel lock | Shih-Yu Chen | 1993-09-21 |
| D323969 | Automobile steering wheel lock | — | 1992-02-18 |
| 5042278 | Automobile steering lock having rods anti-releasing mechanism | — | 1991-08-27 |
| 5022246 | Automobile steering lock | — | 1991-06-11 |