Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9102309 | System and method for detecting wheel slip and skid in a locomotive | Serge Mai | 2015-08-11 |
| 8941956 | Switching ground tether circuit | Adam C. Bennett, Edward M. Murphy | 2015-01-27 |
| 8237384 | Dynamic braking circuit for a hybrid locomotive | Frank Wegner Donnelly, Ronald B. Bailey, Kris Redinger | 2012-08-07 |
| 7940016 | Regenerative braking methods for a hybrid locomotive | Frank Wegner Donnelly, John D. Watson, Ronald B. Bailey | 2011-05-10 |
| 7906862 | Multiple prime power source locomotive control | Frank Wegner Donnelly, Bruce Wolff, John D. Watson | 2011-03-15 |
| 7518254 | Multiple prime power source locomotive control | Frank Wegner Donnelly, Bruce Wolff, John D. Watson | 2009-04-14 |
| 7514807 | Alternator boost method | Frank Wegner Donnelly | 2009-04-07 |
| 7309929 | Locomotive engine start method | Frank Wegner Donnelly | 2007-12-18 |