- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/74 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
Patent holdings for IPC class F24F 11/74
Total number of patents in this class: 1145
10-year publication summary
|
26
|
58
|
120
|
159
|
145
|
142
|
143
|
116
|
70
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47240 |
119 |
| Daikin Industries, Ltd. | 10200 |
81 |
| Panasonic Intellectual Property Management Co., Ltd. | 32795 |
77 |
| Haier Smart Home Co., Ltd. | 5571 |
70 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2399 |
68 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1892 |
57 |
| Tyco Fire & Security GmbH | 3490 |
47 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1936 |
28 |
| Samsung Electronics Co., Ltd. | 150501 |
23 |
| Lennox Industries Inc. | 1106 |
22 |
| Midea Group Co., Ltd. | 4710 |
21 |
| Siemens Industry, Inc. | 1578 |
18 |
| LG Electronics Inc. | 74135 |
13 |
| Johnson Controls Light Commercial IP GmbH | 370 |
12 |
| GREE Electric Appliances, Inc. of Zhuhai | 3267 |
11 |
| Trane International Inc. | 1206 |
11 |
| Carrier Corporation | 3988 |
10 |
| Rheem Manufacturing Company | 985 |
10 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 933 |
10 |
| Air Distribution Technologies IP, LLC | 246 |
9 |
| Other owners | 428 |