Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11970224 | Shoe trimming tool | Matthew L. Gross, Joseph James Wirkus, Josh Severson, Ethan Pedretti, James R. Popp | 2024-04-30 |
| 11208165 | Passive track tensioning system | Joseph James Wirkus | 2021-12-28 |
| 10106956 | Counterweight system for an industrial machine | Joseph J. Colwell, Daniel Schlegel, Christopher T. Larson | 2018-10-23 |
| 9702114 | Counterweight system for an industrial machine | Christopher T. Larson, Joseph J. Colwell, Daniel Schlegel | 2017-07-11 |
| 9297140 | Rope shovel | William J. Hren, Patrick M. Severson, Samuel F. Haworth, Jason Knuth | 2016-03-29 |
| D709100 | Counterweight system | Christopher T. Larson, Daniel Schlegel | 2014-07-15 |
| D681068 | Counterweight system | Christopher T. Larson, Daniel Schlegel | 2013-04-30 |