- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/84 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Patent holdings for IPC class F24F 11/84
Total number of patents in this class: 975
10-year publication summary
|
15
|
20
|
51
|
82
|
103
|
96
|
80
|
122
|
114
|
84
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Haier Smart Home Co., Ltd. | 5516 |
88 |
| Mitsubishi Electric Corporation | 46757 |
82 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1878 |
81 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2385 |
70 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1888 |
52 |
| Daikin Industries, Ltd. | 10133 |
44 |
| Midea Group Co., Ltd. | 4643 |
34 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 671 |
26 |
| GREE Electric Appliances, Inc. of Zhuhai | 3256 |
26 |
| LG Electronics Inc. | 73818 |
25 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 226 |
25 |
| Belimo Holding AG | 272 |
24 |
| Tyco Fire & Security GmbH | 3433 |
24 |
| Lennox Industries Inc. | 1131 |
23 |
| Samsung Electronics Co., Ltd. | 148584 |
18 |
| Johnson Controls Light Commercial IP GmbH | 369 |
18 |
| Johnson Controls Technology Company | 1415 |
17 |
| Carrier Corporation | 4297 |
16 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 280 |
11 |
| Haier US Appliance Solutions, Inc. | 3748 |
10 |
| Other owners | 261 |