- 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: 448
10-year publication summary
|
1
|
10
|
22
|
47
|
49
|
48
|
53
|
34
|
25
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Haier Smart Home Co., Ltd. | 5762 |
64 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2435 |
62 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1928 |
58 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2117 |
21 |
| Lennox Industries Inc. | 1137 |
20 |
| Samsung Electronics Co., Ltd. | 159978 |
17 |
| Mitsubishi Electric Corporation | 48546 |
17 |
| Midea Group Co., Ltd. | 5109 |
16 |
| Tyco Fire & Security GmbH | 3710 |
10 |
| Daikin Industries, Ltd. | 10546 |
9 |
| Johnson Controls Light Commercial IP GmbH | 373 |
9 |
| Resideo USA LLC | 1287 |
9 |
| GREE Electric Appliances, Inc. of Zhuhai | 3328 |
6 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 277 |
6 |
| Trane International Inc. | 1246 |
6 |
| LG Electronics Inc. | 76283 |
5 |
| E.ON Sverige Aktiebolag | 84 |
5 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 780 |
4 |
| Denso Corporation | 25936 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 34724 |
3 |
| Other owners | 98 |