Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5186508 | Trailer lifting foot extender | — | 1993-02-16 |
| 5172121 | System for automatic identification of rail cars | — | 1992-12-15 |
| 4946324 | Railroad flatcar with turntable | Yan H. Tse | 1990-08-07 |