Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8640629 | Battery-powered all-electric and/or hybrid locomotive and related locomotive and train configurations | Gibson V Barbee, Gerhard A. Thelen, Derick Vander Klippe | 2014-02-04 |
| 8342103 | Battery-powered all-electric locomotive and related locomotive and train configurations | Gibson V Barbee, Gerhard A. Thelen, Derick Vander Klippe | 2013-01-01 |
| 8136454 | Battery-powered all-electric locomotive and related locomotive and train configurations | Gibson V Barbee, Gerhard A. Thelen, Derick Vander Klippe | 2012-03-20 |
| H1961 | Directional reference for trailing locomotives and railroad cars | — | 2001-06-05 |
| 4222086 | Overcurrent control device with fail-safe circuits | — | 1980-09-09 |