- 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: 2175
10-year publication summary
|
85
|
131
|
192
|
190
|
195
|
194
|
228
|
232
|
150
|
7
|
| 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 | 2398 |
194 |
| Haier Smart Home Co., Ltd. | 5568 |
193 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1891 |
181 |
| Mitsubishi Electric Corporation | 47219 |
161 |
| Daikin Industries, Ltd. | 10188 |
150 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1931 |
125 |
| Midea Group Co., Ltd. | 4705 |
99 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 700 |
58 |
| GREE Electric Appliances, Inc. of Zhuhai | 3265 |
55 |
| Samsung Electronics Co., Ltd. | 150361 |
42 |
| LG Electronics Inc. | 74090 |
41 |
| Tyco Fire & Security GmbH | 3491 |
37 |
| Panasonic Intellectual Property Management Co., Ltd. | 32753 |
29 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 298 |
25 |
| Google LLC | 43293 |
23 |
| Lennox Industries Inc. | 1136 |
22 |
| Ningbo Aux Electric Co., Ltd. | 182 |
22 |
| Carrier Corporation | 3992 |
21 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 932 |
21 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 518 |
19 |
| Other owners | 657 |