Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8196521 | Locomotive power module installation and removal | Matthew George Holl, Matthew James Bartusek, Suraaj Pal Bhatia | 2012-06-12 |
| 7952306 | Power system with multiple generator units | Roy Christopher Fonseca | 2011-05-31 |
| 7893636 | Mobile machine with one or more electric propulsion motors | Kevin A. Lantz, Roy Christopher Fonseca | 2011-02-22 |
| 7876061 | Power system with multiple generator units | Roy Christopher Fonseca, Andrew William Black | 2011-01-25 |