Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12071852 | Refuge shelter, coupling and method | David E. Maust, Shawn L. Fike | 2024-08-27 |
| 10890069 | Refuge shelter, coupler and method | David E. Maust, Shawn L. Fike | 2021-01-12 |
| 9162176 | Apparatus and method for affecting air | Gregory Paton-Ash, Donald Beitzel, John J. Reinmann, Jr. | 2015-10-20 |
| 8833479 | Fire suppression system | Barry Wayne Maust | 2014-09-16 |
| 8506681 | Apparatus, system and method for cleaning air | Gregory Paton-Ash, Donald Beitzel, John J. Reinmann, Jr. | 2013-08-13 |