Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11116998 | Filtering face-piece respirator having folded flange | — | 2021-09-14 |
| 11083916 | Flat fold respirator having flanges disposed on the mask body | Scott A. Spoo, Thomas I. Insley | 2021-08-10 |