- 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: 359
10-year publication summary
|
15
|
35
|
28
|
62
|
36
|
18
|
31
|
25
|
22
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47749 |
60 |
| Daikin Industries, Ltd. | 10412 |
57 |
| LG Electronics Inc. | 75330 |
45 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2039 |
20 |
| Samsung Electronics Co., Ltd. | 155524 |
19 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 746 |
12 |
| Midea Group Co., Ltd. | 4908 |
8 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2424 |
8 |
| Haier Smart Home Co., Ltd. | 5675 |
8 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1917 |
8 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 328 |
8 |
| GREE Electric Appliances, Inc. of Zhuhai | 3292 |
6 |
| Joi Holding LLC | 79 |
6 |
| Fujitsu General Limited | 590 |
5 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 259 |
5 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 520 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 33839 |
4 |
| Daikin Manufacturing Company, L.P. | 19 |
4 |
| Treau, Inc. | 25 |
4 |
| Wuhu Maty Air-Conditioning Equipment Co., Ltd. | 81 |
4 |
| Other owners | 63 |