Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817358 | Protective hood with adjustable visor | — | 2004-11-16 |
| 6736137 | Protective hooded respirator with oral-nasal cup breathing interface | Richard L. Stein, John J. Kern, Anthony V. Osborne | 2004-05-18 |
| 6701925 | Protective hood respirator | — | 2004-03-09 |