- 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: 389
10-year publication summary
|
34
|
30
|
38
|
35
|
37
|
19
|
33
|
30
|
41
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48048 |
112 |
| Samsung Electronics Co., Ltd. | 157946 |
41 |
| Daikin Industries, Ltd. | 10504 |
26 |
| LG Electronics Inc. | 75818 |
19 |
| Midea Group Co., Ltd. | 5034 |
14 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 765 |
12 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 266 |
11 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2091 |
9 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 521 |
9 |
| Nidec Techno Motor Corporation | 37 |
8 |
| Johnson Controls Light Commercial IP GmbH | 372 |
6 |
| Carrier Corporation | 3951 |
5 |
| BDR Thermea Group B.V. | 182 |
5 |
| Fujitsu General Limited | 597 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3317 |
5 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2429 |
4 |
| Trane International Inc. | 1229 |
4 |
| Haier Smart Home Co., Ltd. | 5716 |
4 |
| Goodman Manufacturing Company, L.P., Goodman Holding Company, a Texas corporation, its General Partner | 144 |
3 |
| Lennox Industries Inc. | 1107 |
3 |
| Other owners | 84 |