Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10052958 | Overhead power grid for mobile mining machines | Joseph J. Zimmerman, Garrett L. Lowman | 2018-08-21 |
| 9662660 | Mobile sizer with integrated load bucket | Joseph J. Zimmerman | 2017-05-30 |
| 9623755 | Overhead power grid for mobile mining machines | Joseph J. Zimmerman, Garrett L. Lowman | 2017-04-18 |
| 9283866 | Overhead power grid for mobile mining machines | Joseph J. Zimmerman, Garrett L. Lowman | 2016-03-15 |
| 9056558 | Overhead power grid for mobile mining machines | Joseph J. Zimmerman, Garrett L. Lowman | 2015-06-16 |