- 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: 299
10-year publication summary
3
|
7
|
7
|
24
|
36
|
41
|
40
|
37
|
37
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
55 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
29 |
Haier Smart Home Co., Ltd. | 4882 |
27 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
22 |
Daikin Industries, Ltd. | 9495 |
16 |
Lennox Industries Inc. | 1088 |
11 |
Samsung Electronics Co., Ltd. | 131630 |
6 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
6 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
5 |
Trane International Inc. | 1123 |
5 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
5 |
LG Electronics Inc. | 69257 |
4 |
Nortek Air Solutions Canada, Inc. | 114 |
4 |
Toshiba Carrier Corporation | 567 |
4 |
Swegon Operations AB | 24 |
4 |
Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
4 |
Sanden Automotive Climate Systems Corporation | 177 |
4 |
Ceské Vysoké Ucení Technické V Praze | 57 |
3 |
Fujitsu General Limited | 541 |
3 |
Midea Group Co., Ltd. | 4025 |
3 |
Other owners | 79 |