- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 7/003 - Ventilation in combination with air cleaning
Patent holdings for IPC class F24F 7/003
Total number of patents in this class: 210
10-year publication summary
|
0
|
1
|
1
|
1
|
0
|
4
|
41
|
83
|
47
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
24 |
| Daikin Industries, Ltd. | 9495 |
9 |
| Sharp Kabushiki Kaisha | 18957 |
9 |
| Mitsubishi Electric Corporation | 43934 |
5 |
| Soochow University | 1605 |
5 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
4 |
| Haier Smart Home Co., Ltd. | 4882 |
4 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
4 |
| Denso Corporation | 23338 |
3 |
| Carrier Corporation | 4759 |
3 |
| Broan-NuTone LLC | 459 |
3 |
| FH Alliance Inc. | 17 |
3 |
| Sirius Co. Ltd. | 4 |
3 |
| Sony Group Corporation | 10730 |
3 |
| Hitachi, Ltd. | 16452 |
2 |
| Cendori Co., Ltd. | 15 |
2 |
| Fancom B.V., | 14 |
2 |
| Lennox Industries Inc. | 1088 |
2 |
| Mitsubishi Electric Home Appliance Co., Ltd. | 311 |
2 |
| Nikkiso Co., Ltd. | 754 |
2 |
| Other owners | 116 |