- 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: 2284
10-year publication summary
|
87
|
131
|
204
|
195
|
197
|
202
|
235
|
234
|
158
|
92
|
| 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 | 2428 |
198 |
| Haier Smart Home Co., Ltd. | 5707 |
197 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1921 |
185 |
| Mitsubishi Electric Corporation | 47971 |
164 |
| Daikin Industries, Ltd. | 10478 |
152 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2087 |
138 |
| Midea Group Co., Ltd. | 4979 |
105 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 765 |
59 |
| GREE Electric Appliances, Inc. of Zhuhai | 3316 |
56 |
| Samsung Electronics Co., Ltd. | 157557 |
51 |
| LG Electronics Inc. | 75654 |
43 |
| Tyco Fire & Security GmbH | 3631 |
40 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
31 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 340 |
26 |
| Lennox Industries Inc. | 1105 |
25 |
| Google LLC | 44482 |
23 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 974 |
23 |
| Carrier Corporation | 3958 |
22 |
| Ningbo Aux Electric Co., Ltd. | 187 |
22 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 521 |
19 |
| Other owners | 705 |