- 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: 1036
10-year publication summary
|
20
|
51
|
82
|
103
|
96
|
80
|
123
|
114
|
98
|
21
|
| 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. | 5645 |
93 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1915 |
86 |
| Mitsubishi Electric Corporation | 47556 |
82 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2422 |
75 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2001 |
55 |
| Daikin Industries, Ltd. | 10375 |
44 |
| Midea Group Co., Ltd. | 4833 |
37 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 741 |
31 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 246 |
27 |
| LG Electronics Inc. | 74953 |
26 |
| GREE Electric Appliances, Inc. of Zhuhai | 3276 |
26 |
| Tyco Fire & Security GmbH | 3533 |
25 |
| Belimo Holding AG | 275 |
24 |
| Lennox Industries Inc. | 1083 |
24 |
| Samsung Electronics Co., Ltd. | 153573 |
19 |
| Johnson Controls Technology Company | 1397 |
18 |
| Johnson Controls Light Commercial IP GmbH | 370 |
18 |
| Carrier Corporation | 3968 |
17 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 327 |
14 |
| Haier US Appliance Solutions, Inc. | 3971 |
11 |
| Other owners | 284 |