- 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: 2222
10-year publication summary
|
85
|
131
|
192
|
190
|
195
|
194
|
228
|
233
|
150
|
41
|
| 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 | 2422 |
198 |
| Haier Smart Home Co., Ltd. | 5645 |
197 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1915 |
185 |
| Mitsubishi Electric Corporation | 47556 |
162 |
| Daikin Industries, Ltd. | 10375 |
152 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2001 |
129 |
| Midea Group Co., Ltd. | 4833 |
101 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 741 |
58 |
| GREE Electric Appliances, Inc. of Zhuhai | 3276 |
55 |
| Samsung Electronics Co., Ltd. | 153573 |
45 |
| LG Electronics Inc. | 74953 |
43 |
| Tyco Fire & Security GmbH | 3533 |
38 |
| Panasonic Intellectual Property Management Co., Ltd. | 33462 |
30 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 327 |
25 |
| Google LLC | 43739 |
23 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 959 |
23 |
| Lennox Industries Inc. | 1083 |
22 |
| Ningbo Aux Electric Co., Ltd. | 182 |
22 |
| Carrier Corporation | 3968 |
21 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 519 |
19 |
| Other owners | 674 |