Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11305134 | Respirator having noncircular centroid-mounted exhalation valve | — | 2022-04-19 |
| 11219787 | Respirator fit check sealing devices and methods | David M. Blomberg, Thomas W. Holmquist-Brown, Adam J. Cernohous, Michael J. Cowell | 2022-01-11 |