Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11027230 | Filter holding frame | Mitchell Karl | 2021-06-08 |
| 10661211 | Filter holding frame | Mitchell Karl | 2020-05-26 |
| 9285133 | Air humidification system | Stephen M. Schneider, Mitchell Karl | 2016-03-15 |