- 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: 376
10-year publication summary
|
7
|
24
|
32
|
41
|
36
|
35
|
37
|
33
|
27
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47416 |
64 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2409 |
34 |
| Haier Smart Home Co., Ltd. | 5615 |
32 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1902 |
27 |
| Daikin Industries, Ltd. | 10227 |
17 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1984 |
11 |
| Lennox Industries Inc. | 1104 |
10 |
| Samsung Electronics Co., Ltd. | 152016 |
9 |
| GREE Electric Appliances, Inc. of Zhuhai | 3268 |
7 |
| Trane International Inc. | 1208 |
7 |
| Fujitsu General Limited | 634 |
6 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 946 |
6 |
| LG Electronics Inc. | 74502 |
5 |
| Midea Group Co., Ltd. | 4766 |
5 |
| Carrier Corporation | 3980 |
4 |
| Güntner GmbH & Co. KG | 60 |
4 |
| Nortek Air Solutions Canada, Inc. | 124 |
4 |
| Toshiba Carrier Corporation | 482 |
4 |
| Swegon Operations AB | 28 |
4 |
| Sanden Automotive Climate Systems Corporation | 178 |
4 |
| Other owners | 112 |