- 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: 2333
10-year publication summary
|
87
|
131
|
204
|
195
|
197
|
202
|
235
|
235
|
160
|
130
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao Haier Air Conditioner General Corp.,ltd | 2435 |
201 |
| Haier Smart Home Co., Ltd. | 5757 |
200 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1928 |
188 |
| Mitsubishi Electric Corporation | 48460 |
164 |
| Daikin Industries, Ltd. | 10540 |
152 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2115 |
140 |
| Midea Group Co., Ltd. | 5098 |
106 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 775 |
60 |
| GREE Electric Appliances, Inc. of Zhuhai | 3327 |
56 |
| Samsung Electronics Co., Ltd. | 159473 |
54 |
| LG Electronics Inc. | 76299 |
45 |
| Tyco Fire & Security GmbH | 3687 |
40 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
33 |
| Lennox Industries Inc. | 1130 |
27 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 342 |
26 |
| Google LLC | 44900 |
23 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 994 |
23 |
| Carrier Corporation | 3960 |
22 |
| Ningbo Aux Electric Co., Ltd. | 188 |
22 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 511 |
19 |
| Other owners | 732 |