Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6860267 | Self-sealing filter connection and gas mask filter assembly incorporating the same | Andrew Capon, David K. Friday, Brian E. Davis, David W. Pike | 2005-03-01 |
| 6763830 | Respirator with hinged visor | Brian E. Davis, Mark Robert Smithson | 2004-07-20 |