- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 1/38 - Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
Patent holdings for IPC class F24F 1/38
Total number of patents in this class: 331
10-year publication summary
|
18
|
34
|
30
|
38
|
35
|
37
|
18
|
33
|
28
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44904 |
100 |
| Samsung Electronics Co., Ltd. | 139302 |
32 |
| Daikin Industries, Ltd. | 9851 |
24 |
| LG Electronics Inc. | 71074 |
14 |
| Midea Group Co., Ltd. | 4310 |
13 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 547 |
9 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 495 |
9 |
| Nidec Techno Motor Corporation | 37 |
8 |
| Tyco Fire & Security GmbH | 3303 |
8 |
| Lennox Industries Inc. | 1101 |
7 |
| QC Manufacturing, Inc. | 28 |
6 |
| Carrier Corporation | 4451 |
5 |
| BDR Thermea Group B.V. | 126 |
5 |
| Fujitsu General Limited | 579 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3156 |
5 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2341 |
4 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 184 |
4 |
| Trane International Inc. | 1154 |
4 |
| Haier Smart Home Co., Ltd. | 5315 |
4 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1663 |
3 |
| Other owners | 62 |