- 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: 575
10-year publication summary
|
12
|
12
|
34
|
58
|
49
|
81
|
94
|
83
|
44
|
19
|
| 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. | 5428 |
60 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1854 |
59 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2361 |
57 |
| Mitsubishi Electric Corporation | 45860 |
25 |
| Daikin Industries, Ltd. | 9971 |
24 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
18 |
| Samsung Electronics Co., Ltd. | 144426 |
16 |
| Tyco Fire & Security GmbH | 3166 |
15 |
| LG Electronics Inc. | 72559 |
12 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1802 |
12 |
| Lennox Industries Inc. | 1112 |
11 |
| Midea Group Co., Ltd. | 4489 |
9 |
| Trane International Inc. | 1175 |
9 |
| Carrier Corporation | 4358 |
8 |
| Johnson Controls Technology Company | 1454 |
6 |
| Johnson Controls Tyco IP Holdings LLP | 657 |
6 |
| Siemens Industry, Inc. | 1440 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3221 |
5 |
| Microjet Technology Co., Ltd. | 445 |
4 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 193 |
4 |
| Other owners | 210 |