Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6386200 | Bi-functional in-line phonation valve | John O'Mahony, David Frigger | 2002-05-14 |
| 6334441 | Phonation valve for breathing tube | Thomas Young, Tony Wondka | 2002-01-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6386200 | Bi-functional in-line phonation valve | John O'Mahony, David Frigger | 2002-05-14 |
| 6334441 | Phonation valve for breathing tube | Thomas Young, Tony Wondka | 2002-01-01 |