Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12337341 | HVAC round pipe sealed fittings | — | 2025-06-24 |
| 10898920 | HVAC round pipe sealed fittings | — | 2021-01-26 |
| 10589911 | Angle plate package having a single strap | Douglas G. Gudenburr | 2020-03-17 |
| 10436369 | High efficiency take-off fitting | Alvin L. Jefferson, David E. Overdorff, II, Branden Butella, David Agee | 2019-10-08 |
| 8973954 | Dual purpose dimple for HVAC circular ductwork | Alvin Coughenour, Vincent L. Bloom | 2015-03-10 |
| 8429803 | Dual purpose dimple for HVAC circular ductwork | Alvin Coughenour, Vincent L. Bloom | 2013-04-30 |