Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8405574 | Facemask display | Dennis G. Gallahger, William D. Olstad, William W. Hughes, III, Charles Holmes, Richard Manley | 2013-03-26 |
| 8061570 | Quick release mask bracket | Charles Holmes, Dennis Gallagher, William D. Olstad, William W. Hughes, III | 2011-11-22 |