Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312857 | Door actuation system and method | Frank Golemis, Karl J. Kobel, Robert Johnson, Matthew Chapman | 2025-05-27 |
| 11554636 | Enclosure for a vehicle system | Matthew Chapman, Karl J. Kobel, Richard Peck | 2023-01-17 |
| 10639219 | Interlock for lift outer roll stop | Lluno Cervera, Paul W. Debski, Karl J. Kobel, Benjamin R. Satkiewicz | 2020-05-05 |
| 10596989 | Driver's barrier door with powered window | Matthew Chapman, Karl J. Kobel, Richard Peck | 2020-03-24 |
| 10353523 | Passenger communication lighting | Karl J. Kobel | 2019-07-16 |
| 9869118 | Dual manual disengagement mechanism for an electric transit door operator | — | 2018-01-16 |
| 7587929 | Joint combined aircrew systems tester | David Edward Zielinski, Douglas W. Eaton | 2009-09-15 |