Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10001009 | Pumpable mine ventilation structure | Joseph P. Bower, John J. Breedlove, Erik Denver, Tyler Proffitt | 2018-06-19 |
| 9200815 | Ventilation ducting arrangement | Kevin J. Carson | 2015-12-01 |
| 9022689 | Pumpable mine ventilation structure | Joseph P. Bower, John J. Breedlove, Erik Denver, Tyler Proffitt | 2015-05-05 |
| 8246276 | Pumpable crib bag assembly and method of installation | Joseph P. Bower | 2012-08-21 |