Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270865 | High air velocity duct board having minimal turbulence | Patrick M. Noonan, Frederick M. Beyer | 2001-08-07 |
| 5783268 | High air velocity duct board having minimal turbulence | Patrick M. Noonan, Frederick M. Beyer | 1998-07-21 |