- 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: 2089
10-year publication summary
|
29
|
85
|
131
|
192
|
190
|
195
|
194
|
227
|
229
|
98
|
| 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 | 2372 |
192 |
| Haier Smart Home Co., Ltd. | 5475 |
190 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1865 |
179 |
| Mitsubishi Electric Corporation | 46249 |
158 |
| Daikin Industries, Ltd. | 10031 |
149 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1830 |
114 |
| Midea Group Co., Ltd. | 4564 |
94 |
| GREE Electric Appliances, Inc. of Zhuhai | 3246 |
54 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 632 |
51 |
| LG Electronics Inc. | 73383 |
38 |
| Tyco Fire & Security GmbH | 3196 |
37 |
| Samsung Electronics Co., Ltd. | 147003 |
35 |
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
28 |
| Google LLC | 42379 |
22 |
| Ningbo Aux Electric Co., Ltd. | 180 |
22 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 889 |
21 |
| Carrier Corporation | 4292 |
20 |
| Lennox Industries Inc. | 1129 |
20 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 513 |
19 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 247 |
19 |
| Other owners | 627 |