Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4616647 | Molded fiber disposable face mask having enhanced nose and chin filter-seals | — | 1986-10-14 |
| 4579113 | Disposable covers for respirators | James M. Cooper | 1986-04-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4616647 | Molded fiber disposable face mask having enhanced nose and chin filter-seals | — | 1986-10-14 |
| 4579113 | Disposable covers for respirators | James M. Cooper | 1986-04-01 |