Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10905903 | Respirator having optically active exhalation valve | Caroline M. Ylitalo, Gina M. Buccellato, James M. Jonza, William W. Merrill, Douglas S. Dunn +1 more | 2021-02-02 |