Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8613113 | Compact protective hood with vulcanized neck dam interface | — | 2013-12-24 |
| 8011023 | Compact protective hood with fold lines | — | 2011-09-06 |
| 7814904 | Protective hood structural attachment system | — | 2010-10-19 |
| 7810493 | Drink tube system for respiratory protective device | — | 2010-10-12 |
| 7610913 | Fluid impermeable interface for protective materials | — | 2009-11-03 |
| 7114496 | Filter cartridge with integrated inhalation and exhalation valves | Richard L. Stein | 2006-10-03 |
| 6907878 | Protective hood with adjustable visor | — | 2005-06-21 |
| 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 |
| 6371116 | Method and apparatus for pressurizing a protective hood enclosure with exhaled air | — | 2002-04-16 |
| 6302103 | Protective hood with integrated externally adjustable nose clip | — | 2001-10-16 |
| 5875775 | Protective breathing mask | Benyamin Nur | 1999-03-02 |
| 5400928 | Dry pocket nozzle receptacle | — | 1995-03-28 |