Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11835260 | Interior ventilator door for purifying air and a method of employing the door to purify air in a structure | — | 2023-12-05 |
| 11255121 | Hollow core door with perimeter air flow | — | 2022-02-22 |
| 11248415 | Energy recovery ventilator door | — | 2022-02-15 |
| 11215006 | Exterior ventilator door and ventilator assembly for bringing fresh air into a structure | — | 2022-01-04 |
| 10676984 | Hollow core door for peventing pressure build uphaving a divided non-linear air flowthrough the door | — | 2020-06-09 |
| 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 |
| 10156091 | Margin air flow door for preventing pressure build up | — | 2018-12-18 |
| 10060182 | Margin air flow doors for preventing pressure build up | — | 2018-08-28 |
| 10012408 | Exterior ventilator door for receiving outdoor air | — | 2018-07-03 |
| 9803417 | Hollow core door with perimeter air flow and movable damper panels | — | 2017-10-31 |
| 9745793 | Hollow core door with internal air flow | — | 2017-08-29 |
| 9719291 | Hollow core door with internal air flow and sliding panel | — | 2017-08-01 |
| 9493979 | Hollow core door with internal air flow | — | 2016-11-15 |
| 9493980 | Stile and rail door with hollow core stiles and rails for perimeter air flow | — | 2016-11-15 |
| 9376856 | Hollow core door with internal air flow | — | 2016-06-28 |
| 9109389 | Hollow core door with internal air flow | — | 2015-08-18 |
| 9085933 | Hollow core door with scrubbers for cleaning inner air flow | — | 2015-07-21 |
| 7644551 | Double skin door apparatus | — | 2010-01-12 |
| 6820308 | Hinge apparatus and method of making a hinge recess | — | 2004-11-23 |
| 5782055 | Door Apparatus and method of making door | — | 1998-07-21 |