- 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: 605
10-year publication summary
|
7
|
11
|
31
|
55
|
45
|
78
|
89
|
81
|
45
|
42
|
| 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. | 5542 |
60 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1883 |
59 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2390 |
57 |
| Mitsubishi Electric Corporation | 46926 |
25 |
| Daikin Industries, Ltd. | 10166 |
24 |
| Samsung Electronics Co., Ltd. | 149087 |
21 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
20 |
| Tyco Fire & Security GmbH | 3461 |
15 |
| LG Electronics Inc. | 73772 |
13 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1909 |
13 |
| Lennox Industries Inc. | 1123 |
11 |
| Midea Group Co., Ltd. | 4678 |
10 |
| Trane International Inc. | 1201 |
10 |
| Carrier Corporation | 4009 |
8 |
| Johnson Controls Technology Company | 1413 |
6 |
| Johnson Controls Tyco IP Holdings LLP | 422 |
6 |
| Siemens Industry, Inc. | 1478 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3254 |
5 |
| Microjet Technology Co., Ltd. | 450 |
4 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 229 |
4 |
| Other owners | 229 |