- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 7/02 - Roof ventilation
Patent holdings for IPC class F24F 7/02
Total number of patents in this class: 404
10-year publication summary
|
40
|
43
|
51
|
40
|
37
|
38
|
42
|
34
|
35
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canplas Industries Ltd. | 95 |
18 |
| O'daniels, LLC. | 55 |
17 |
| QC Manufacturing, Inc. | 27 |
14 |
| Air Vent, Inc. | 48 |
12 |
| Snowventco Ltd. | 17 |
11 |
| Building Materials Investment Corporation | 158 |
9 |
| VKR Holding A/S | 575 |
9 |
| Benjamin Obdyke Incorporated | 48 |
7 |
| Brentwood Industries, Inc. | 114 |
7 |
| CSR Building Products Limited | 49 |
7 |
| Owens Corning Intellectual Capital, LLC | 1456 |
7 |
| Cor-A-Vent, Inc. | 16 |
6 |
| Roof Goose Vent LLC | 15 |
6 |
| Broan-NuTone LLC | 459 |
5 |
| Marco Industries, Inc. | 23 |
5 |
| Entos Energiatekniikan Optimisäätö Oy | 9 |
5 |
| Panasonic Corporation | 20786 |
4 |
| Amazon Technologies, Inc. | 24422 |
4 |
| Captive-Aire Systems, Inc. | 88 |
4 |
| Framery Oy | 60 |
4 |
| Other owners | 243 |