Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7045981 | Optimized locomotive traction system | Mark Nicolussi, Ajith Kuttannair Kumar | 2006-05-16 |
| 6651762 | AC motorized wheel arrangement | Michael Doud Leisenring, Maurice Frank Dalton | 2003-11-25 |
| 6507797 | Direct current machine monitoring system and method | Gerald Burt Kliman, Richard Kenneth Barton, Michael Treanor, Rudolph Alfred Albert Koegl | 2003-01-14 |
| 6188153 | Segmented stator end turn air deflector for force ventilated AC motor | — | 2001-02-13 |
| 6148940 | AC motorized wheel arrangement | Michael Doud Leisenring, Maurice Frank Dalton | 2000-11-21 |
| 5306972 | AC motor system | Ajith K. Kumar | 1994-04-26 |
| 5283493 | Cold air cooling of brushes for motorized wheels | George C. Veith | 1994-02-01 |
| 5083055 | Notched carbon brush for rotating electric machines | — | 1992-01-21 |
| 5030898 | Variable voltage limit control for an electric propulsion system | Edward S. Matulevich | 1991-07-09 |