- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/89 - Arrangement or mounting of control or safety devices
Patent holdings for IPC class F24F 11/89
Total number of patents in this class: 2123
10-year publication summary
|
29
|
85
|
131
|
192
|
190
|
195
|
194
|
228
|
231
|
120
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao Haier Air Conditioner General Corp.,ltd | 2379 |
192 |
| Haier Smart Home Co., Ltd. | 5495 |
190 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1872 |
179 |
| Mitsubishi Electric Corporation | 46590 |
160 |
| Daikin Industries, Ltd. | 10111 |
149 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1867 |
119 |
| Midea Group Co., Ltd. | 4618 |
96 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 665 |
57 |
| GREE Electric Appliances, Inc. of Zhuhai | 3252 |
55 |
| LG Electronics Inc. | 73690 |
38 |
| Tyco Fire & Security GmbH | 3424 |
37 |
| Samsung Electronics Co., Ltd. | 147983 |
36 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
28 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 276 |
25 |
| Google LLC | 42673 |
23 |
| Ningbo Aux Electric Co., Ltd. | 180 |
22 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 901 |
21 |
| Carrier Corporation | 4299 |
20 |
| Lennox Industries Inc. | 1130 |
20 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 513 |
19 |
| Other owners | 637 |