- 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: 612
10-year publication summary
|
11
|
31
|
55
|
45
|
78
|
89
|
81
|
45
|
45
|
7
|
| 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. | 5614 |
60 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1901 |
59 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2408 |
57 |
| Mitsubishi Electric Corporation | 47380 |
25 |
| Daikin Industries, Ltd. | 10223 |
24 |
| Samsung Electronics Co., Ltd. | 151726 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 33033 |
20 |
| Tyco Fire & Security GmbH | 3510 |
15 |
| LG Electronics Inc. | 74447 |
13 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1969 |
13 |
| Lennox Industries Inc. | 1090 |
11 |
| Midea Group Co., Ltd. | 4746 |
10 |
| Trane International Inc. | 1208 |
10 |
| Carrier Corporation | 3976 |
8 |
| Johnson Controls Technology Company | 1403 |
7 |
| Johnson Controls Tyco IP Holdings LLP | 416 |
6 |
| Siemens Industry, Inc. | 1579 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3268 |
5 |
| Microjet Technology Co., Ltd. | 461 |
5 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 239 |
4 |
| Other owners | 233 |