Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11260887 | Locomotive parking brake | Derick Call, Carl Banks, Nicholas Van Derzee, Steven Michael Barnhart | 2022-03-01 |
| 10501098 | Locomotive parking brake | Derick Call, Carl Banks, Nicholas Van Derzee, Steven Michael Barnhart | 2019-12-10 |
| 10011289 | Automatic parking brake for body mounted brake cylinder | Derick Call, Justin Sven LaCosse, Craig Floyd Hughes | 2018-07-03 |