- 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: 726
10-year publication summary
|
16
|
48
|
103
|
85
|
89
|
80
|
81
|
78
|
37
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47655 |
74 |
| Daikin Industries, Ltd. | 10401 |
71 |
| Haier Smart Home Co., Ltd. | 5666 |
48 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2423 |
46 |
| Tyco Fire & Security GmbH | 3584 |
44 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1916 |
42 |
| Lennox Industries Inc. | 1086 |
28 |
| Johnson Controls Technology Company | 1396 |
21 |
| Panasonic Intellectual Property Management Co., Ltd. | 33634 |
20 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 254 |
19 |
| Samsung Electronics Co., Ltd. | 154406 |
14 |
| Honeywell International Inc. | 12788 |
14 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 520 |
12 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2032 |
9 |
| Midea Group Co., Ltd. | 4860 |
9 |
| LG Electronics Inc. | 75112 |
8 |
| GREE Electric Appliances, Inc. of Zhuhai | 3284 |
8 |
| Resideo LLC | 1331 |
8 |
| Carrier Corporation | 3965 |
7 |
| Fujitsu General Limited | 601 |
7 |
| Other owners | 217 |