Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6892725 | Protective hoods and neck seals for use therein | — | 2005-05-17 |
| 5714126 | Respirator filter system | — | 1998-02-03 |
| 4816330 | Chemical resistant laminated garment material | Paul X. Freund | 1989-03-28 |