Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12140620 | Electrical contact wear monitoring system | Eric J. Ruth, Zachary R. Carter, Bradley Bailey | 2024-11-12 |
| 11874314 | Electrical contact wear monitoring system | Eric J. Ruth, Zachary R. Carter, Bradley Bailey | 2024-01-16 |
| 11610484 | Control system for maintaining alignment of machine on a trolley assist | Eric J. Ruth, Zachary R. Carter | 2023-03-21 |
| 9550424 | Mounting structure for supporting pantograph in machine | Nirmal Goldwin, Zachary R. Carter, Pathik Patel, Vipin Kalathil, Sai R. Rachakonda | 2017-01-24 |
| 9140155 | Modular exhaust system | Mary Jill Trumper, Kris E. Seitz, Andrew D. Hill, Thomas N. Brooks, Jr., Troy A. Shawgo | 2015-09-22 |
| 5697807 | Electrical connector | Donald Charles Richardson | 1997-12-16 |
| 5495806 | Detonators | — | 1996-03-05 |