Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824110 | Method and system for automatically activating a warning device on a train | James Francis Shockley, Harrison Thomas Hickenlooper | 2004-11-30 |
| 6701228 | Method and system for compensating for wheel wear on a train | James Francis Shockley, Harrison Thomas Hickenlooper | 2004-03-02 |