Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4196727 | See-through anesthesia mask | Wesley H. Verkaart | 1980-04-08 |
| 4181511 | Bacteria filters with transparent housings | Paul O. Huston | 1980-01-01 |
| 4181512 | Bacteria filters with transparent housings | Paul O. Huston | 1980-01-01 |