Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460539 | Respirator that includes an integral filter element, an exhalation valve, and impactor element | Nicole V. McCullough | 2002-10-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460539 | Respirator that includes an integral filter element, an exhalation valve, and impactor element | Nicole V. McCullough | 2002-10-08 |