Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11724722 | Attachment mounting apparatus for a railroad coupler | Zhenzhong Long | 2023-08-15 |
| 11584409 | Railroad color light signals including wind reduction elements | Zhenzhong Long | 2023-02-21 |