Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11846618 | Method and apparatus for automatically maintaining a desired level of oxygen in a refuge | David E. Maust, Kyle D. Maust, Rob Albinger | 2023-12-19 |
| 11150229 | Method and apparatus for automatically maintaining a desired level of oxygen in a refuge | David E. Maust, Kyle D. Maust, Rob Albinger | 2021-10-19 |
| 10829971 | Inclined patch fitting cover | Douglas Thompson | 2020-11-10 |
| 10801253 | End load arm | Melissa Thompson, Douglas Thompson | 2020-10-13 |