- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/54 - Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
Patent holdings for IPC class F24F 11/54
Total number of patents in this class: 732
10-year publication summary
|
16
|
48
|
103
|
85
|
89
|
80
|
81
|
78
|
37
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48236 |
76 |
| Daikin Industries, Ltd. | 10513 |
71 |
| Haier Smart Home Co., Ltd. | 5732 |
48 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2435 |
46 |
| Tyco Fire & Security GmbH | 3675 |
44 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1928 |
42 |
| Lennox Industries Inc. | 1114 |
27 |
| Johnson Controls Technology Company | 1374 |
21 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
20 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 271 |
19 |
| Honeywell International Inc. | 12770 |
15 |
| Samsung Electronics Co., Ltd. | 158605 |
14 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 510 |
12 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2101 |
9 |
| GREE Electric Appliances, Inc. of Zhuhai | 3317 |
9 |
| Midea Group Co., Ltd. | 5060 |
9 |
| LG Electronics Inc. | 75910 |
8 |
| Resideo USA LLC | 1206 |
8 |
| Carrier Corporation | 3950 |
7 |
| Fujitsu General Limited | 601 |
7 |
| Other owners | 220 |