- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/67 - Switching between heating and cooling modes
Patent holdings for IPC class F24F 11/67
Total number of patents in this class: 425
10-year publication summary
|
0
|
1
|
10
|
18
|
46
|
49
|
48
|
52
|
34
|
25
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Haier Smart Home Co., Ltd. | 5554 |
63 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2393 |
61 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1886 |
57 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1914 |
20 |
| Lennox Industries Inc. | 1127 |
18 |
| Mitsubishi Electric Corporation | 47065 |
17 |
| Midea Group Co., Ltd. | 4686 |
15 |
| Samsung Electronics Co., Ltd. | 149582 |
14 |
| Tyco Fire & Security GmbH | 3480 |
10 |
| Daikin Industries, Ltd. | 10169 |
9 |
| Johnson Controls Light Commercial IP GmbH | 371 |
9 |
| Resideo LLC | 1313 |
8 |
| LG Electronics Inc. | 73936 |
5 |
| E.ON Sverige Aktiebolag | 85 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3260 |
5 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 229 |
5 |
| Trane International Inc. | 1205 |
5 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 694 |
4 |
| Denso Corporation | 24842 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 32590 |
3 |
| Other owners | 89 |