- 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: 579
10-year publication summary
|
12
|
12
|
34
|
58
|
49
|
81
|
92
|
82
|
45
|
23
|
| 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. | 5462 |
60 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1865 |
59 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2372 |
57 |
| Mitsubishi Electric Corporation | 46127 |
25 |
| Daikin Industries, Ltd. | 10004 |
24 |
| Samsung Electronics Co., Ltd. | 146346 |
18 |
| Panasonic Intellectual Property Management Co., Ltd. | 31475 |
18 |
| Tyco Fire & Security GmbH | 3203 |
15 |
| LG Electronics Inc. | 73111 |
13 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1830 |
12 |
| Lennox Industries Inc. | 1123 |
11 |
| Midea Group Co., Ltd. | 4554 |
9 |
| Trane International Inc. | 1182 |
9 |
| Carrier Corporation | 4344 |
8 |
| Johnson Controls Technology Company | 1425 |
6 |
| Johnson Controls Tyco IP Holdings LLP | 638 |
6 |
| Siemens Industry, Inc. | 1446 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3246 |
5 |
| Microjet Technology Co., Ltd. | 447 |
4 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 203 |
4 |
| Other owners | 211 |