Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12071852 | Refuge shelter, coupling and method | Shawn L. Fike, Michael Scott Bishoff | 2024-08-27 |
| 11846618 | Method and apparatus for automatically maintaining a desired level of oxygen in a refuge | Kyle D. Maust, Kyle R. Murray, Rob Albinger | 2023-12-19 |
| 11150229 | Method and apparatus for automatically maintaining a desired level of oxygen in a refuge | Kyle D. Maust, Kyle R. Murray, Rob Albinger | 2021-10-19 |
| 10890069 | Refuge shelter, coupler and method | Shawn L. Fike, Michael Scott Bishoff | 2021-01-12 |