Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10001009 | Pumpable mine ventilation structure | John J. Breedlove, Erik Denver, Steven S. Fleagle, Tyler Proffitt | 2018-06-19 |
| 9273402 | System and method for the manufacture, storage and transportation of hydrogen and oxygen gas | — | 2016-03-01 |
| 9022689 | Pumpable mine ventilation structure | John J. Breedlove, Erik Denver, Steven S. Fleagle, Tyler Proffitt | 2015-05-05 |
| 8246276 | Pumpable crib bag assembly and method of installation | Steven S. Fleagle | 2012-08-21 |