- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/41 - Defrosting; Preventing freezing
Patent holdings for IPC class F24F 11/41
Total number of patents in this class: 335
10-year publication summary
|
7
|
7
|
24
|
36
|
41
|
39
|
39
|
39
|
32
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44678 |
62 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2332 |
32 |
| Haier Smart Home Co., Ltd. | 5289 |
30 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1827 |
25 |
| Daikin Industries, Ltd. | 9766 |
16 |
| Lennox Industries Inc. | 1096 |
11 |
| Samsung Electronics Co., Ltd. | 138320 |
8 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1653 |
8 |
| GREE Electric Appliances, Inc. of Zhuhai | 3146 |
6 |
| Trane International Inc. | 1147 |
6 |
| LG Electronics Inc. | 70831 |
5 |
| Midea Group Co., Ltd. | 4277 |
5 |
| Nortek Air Solutions Canada, Inc. | 119 |
4 |
| Toshiba Carrier Corporation | 520 |
4 |
| Swegon Operations AB | 24 |
4 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 835 |
4 |
| Sanden Automotive Climate Systems Corporation | 179 |
4 |
| Carrier Corporation | 4443 |
3 |
| Ceské Vysoké Ucení Technické V Praze | 72 |
3 |
| Fujitsu General Limited | 579 |
3 |
| Other owners | 92 |