Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7944081 | Multi-power source locomotive control method and system | Frank Wegner Donnelly, John D. Watson | 2011-05-17 |
| 7906862 | Multiple prime power source locomotive control | Frank Wegner Donnelly, Andrew Tarnow, John D. Watson | 2011-03-15 |