- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 1/32 - Refrigerant piping for connecting the separate outdoor unit to indoor units
Patent holdings for IPC class F24F 1/32
Total number of patents in this class: 332
10-year publication summary
|
20
|
15
|
35
|
28
|
62
|
36
|
18
|
31
|
24
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 45860 |
60 |
| Daikin Industries, Ltd. | 9971 |
57 |
| LG Electronics Inc. | 72559 |
45 |
| Samsung Electronics Co., Ltd. | 144426 |
17 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1802 |
17 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 598 |
9 |
| Midea Group Co., Ltd. | 4489 |
8 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2361 |
7 |
| Haier Smart Home Co., Ltd. | 5428 |
7 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1854 |
7 |
| GREE Electric Appliances, Inc. of Zhuhai | 3221 |
6 |
| Joi Holding LLC | 74 |
6 |
| Fujitsu General Limited | 594 |
5 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 508 |
5 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 224 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
4 |
| Daikin Manufacturing Company, L.P. | 19 |
4 |
| Treau, Inc. | 24 |
4 |
| Carrier Corporation | 4358 |
3 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 193 |
3 |
| Other owners | 53 |