Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5522768 | Acoustic attenuating curb | Clarence R. Brodt, Gregory L. Meeuwsen | 1996-06-04 |
| 5324229 | Two section economizer damper assembly providing improved air mixing | — | 1994-06-28 |