Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10337238 | Exterior ventilator door for receiving outdoor air | — | 2019-07-02 |
| 10301869 | Hollow core door for preventing pressure build up having a prefabricated center panel and method of making the door | — | 2019-05-28 |
| 10190360 | Hollow core door with perimeter air flow and multiple damper panels | — | 2019-01-29 |
| 10190361 | Method of controlling a flow of air through a door | — | 2019-01-29 |