Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323961 | Apparatus for controlling unit ventilators | — | 1994-06-28 |
| 5207379 | Cascaded control apparatus for controlling unit ventilators | Paul R. Bontrager, Amy L. Ikenn | 1993-05-04 |
| 5174333 | Output pressure control apparatus | — | 1992-12-29 |