Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8863458 | Insulative sealing system and materials therefor | Jeffrey R. Brisley | 2014-10-21 |
| 6270865 | High air velocity duct board having minimal turbulence | Robert D. Hauk, Frederick M. Beyer | 2001-08-07 |
| 5783268 | High air velocity duct board having minimal turbulence | Robert D. Hauk, Frederick M. Beyer | 1998-07-21 |