Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11130008 | Respirator flow control apparatus and method | Garry J. Walker, Andrew Murphy, Desmond T. Curran, Derek A. Parkin, Mark A. J. Fernandes | 2021-09-28 |
| 11083916 | Flat fold respirator having flanges disposed on the mask body | Dean R. Duffy, Scott A. Spoo | 2021-08-10 |
| 11052268 | Respirator negative pressure fit check devices and methods | William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, David M. Blomberg +6 more | 2021-07-06 |