- 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: 1038
10-year publication summary
|
20
|
51
|
82
|
103
|
96
|
80
|
123
|
114
|
98
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Haier Smart Home Co., Ltd. | 5651 |
93 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1916 |
86 |
| Mitsubishi Electric Corporation | 47602 |
83 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2423 |
75 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2002 |
55 |
| Daikin Industries, Ltd. | 10384 |
44 |
| Midea Group Co., Ltd. | 4837 |
37 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 742 |
31 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 247 |
27 |
| LG Electronics Inc. | 74968 |
26 |
| GREE Electric Appliances, Inc. of Zhuhai | 3278 |
26 |
| Tyco Fire & Security GmbH | 3574 |
25 |
| Belimo Holding AG | 276 |
24 |
| Lennox Industries Inc. | 1084 |
24 |
| Samsung Electronics Co., Ltd. | 153845 |
19 |
| Johnson Controls Technology Company | 1396 |
18 |
| Johnson Controls Light Commercial IP GmbH | 370 |
18 |
| Carrier Corporation | 3964 |
17 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 328 |
14 |
| Haier US Appliance Solutions, Inc. | 3972 |
11 |
| Other owners | 285 |