- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/41 - DefrostingPreventing freezing
Patent holdings for IPC class F24F 11/41
Total number of patents in this class: 358
10-year publication summary
|
7
|
7
|
24
|
36
|
41
|
39
|
39
|
39
|
33
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 45946 |
63 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2364 |
34 |
| Haier Smart Home Co., Ltd. | 5435 |
32 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1857 |
27 |
| Daikin Industries, Ltd. | 9973 |
16 |
| Lennox Industries Inc. | 1116 |
11 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1815 |
10 |
| Samsung Electronics Co., Ltd. | 145025 |
8 |
| GREE Electric Appliances, Inc. of Zhuhai | 3238 |
7 |
| Trane International Inc. | 1180 |
7 |
| LG Electronics Inc. | 72737 |
5 |
| Midea Group Co., Ltd. | 4517 |
5 |
| Fujitsu General Limited | 598 |
4 |
| Nortek Air Solutions Canada, Inc. | 121 |
4 |
| Toshiba Carrier Corporation | 500 |
4 |
| Swegon Operations AB | 27 |
4 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 885 |
4 |
| Sanden Automotive Climate Systems Corporation | 178 |
4 |
| Carrier Corporation | 4354 |
3 |
| Ceské Vysoké Ucení Technické V Praze | 73 |
3 |
| Other owners | 103 |