Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10980963 | Cloth respiratory mask | David Groll, Ronnie E. Mahofski, Nadine Scandinaro | 2021-04-20 |
| 9981104 | Full face cloth respiratory mask | David Groll, Ronnie E. Mahofski, Nadine Scandinaro | 2018-05-29 |