Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11242750 | Adjustable lattice girder | John C. Stankus, Dakota Faulkner, Jacob Hunter, James Edward Pinkley | 2022-02-08 |
| 10001009 | Pumpable mine ventilation structure | Joseph P. Bower, Erik Denver, Steven S. Fleagle, Tyler Proffitt | 2018-06-19 |
| 9617705 | Retainment wall for underground mine and method of construction | Erik Denver, Tyler Proffitt, Robert Lamond | 2017-04-11 |
| 9022689 | Pumpable mine ventilation structure | Joseph P. Bower, Erik Denver, Steven S. Fleagle, Tyler Proffitt | 2015-05-05 |
| 8371658 | Apparatus and method for supporting a mine rib | Erik Denver, Herbert B. Stiltner | 2013-02-12 |
| 8044824 | Electronic barrier and enforcement system and method | Patrick Vu, Jannine Miller, Randall Guensler, Teresa Slack | 2011-10-25 |