Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10258915 | Collapsible air filtering device | Dana Paul Gruenbacher, Steven James Schroeck, Paolo Dal Bo, Uwe Schober | 2019-04-16 |
| 10232297 | Air filtering device | Dana Paul Gruenbacher, Steven James Schroeck, Paolo Dal Bo, Uwe Schober | 2019-03-19 |