- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/72 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure
Patent holdings for IPC class F24F 11/72
Total number of patents in this class: 638
10-year publication summary
|
12
|
34
|
58
|
49
|
81
|
94
|
83
|
48
|
51
|
29
|
| 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. | 5770 |
60 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1929 |
59 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2437 |
57 |
| Mitsubishi Electric Corporation | 48587 |
26 |
| Daikin Industries, Ltd. | 10551 |
24 |
| Samsung Electronics Co., Ltd. | 160170 |
23 |
| Panasonic Intellectual Property Management Co., Ltd. | 34776 |
22 |
| Tyco Fire & Security GmbH | 3724 |
21 |
| LG Electronics Inc. | 76345 |
14 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2119 |
14 |
| Lennox Industries Inc. | 1136 |
13 |
| Midea Group Co., Ltd. | 5121 |
10 |
| Trane International Inc. | 1246 |
10 |
| Carrier Corporation | 3958 |
8 |
| Johnson Controls Technology Company | 1367 |
7 |
| Siemens Industry, Inc. | 1557 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3329 |
5 |
| Microjet Technology Co., Ltd. | 451 |
5 |
| Coway Co., Ltd. | 799 |
4 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 789 |
4 |
| Other owners | 247 |