- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/32 - Responding to malfunctions or emergencies
Patent holdings for IPC class F24F 11/32
Total number of patents in this class: 550
10-year publication summary
|
18
|
29
|
53
|
60
|
80
|
75
|
66
|
55
|
63
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44678 |
49 |
| Tyco Fire & Security GmbH | 3281 |
40 |
| Daikin Industries, Ltd. | 9766 |
34 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2332 |
25 |
| Haier Smart Home Co., Ltd. | 5289 |
25 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1827 |
24 |
| PassiveLogic, Inc. | 177 |
20 |
| Lennox Industries Inc. | 1096 |
18 |
| Honeywell International Inc. | 14009 |
15 |
| Johnson Controls Technology Company | 1484 |
12 |
| GREE Electric Appliances, Inc. of Zhuhai | 3146 |
12 |
| Midea Group Co., Ltd. | 4277 |
12 |
| Trane International Inc. | 1147 |
11 |
| Carrier Corporation | 4443 |
10 |
| Belimo Holding AG | 256 |
10 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1653 |
10 |
| LG Electronics Inc. | 70831 |
8 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 543 |
7 |
| Google LLC | 40708 |
7 |
| GridPoint, Inc. | 78 |
7 |
| Other owners | 194 |