- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 140/20 - Heat-exchange fluid temperature
Patent holdings for IPC class F24F 140/20
Total number of patents in this class: 654
10-year publication summary
|
12
|
21
|
50
|
69
|
70
|
70
|
60
|
73
|
39
|
33
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48409 |
68 |
| Haier Smart Home Co., Ltd. | 5752 |
65 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1928 |
62 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2435 |
59 |
| Daikin Industries, Ltd. | 10527 |
34 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2112 |
31 |
| Samsung Electronics Co., Ltd. | 159298 |
23 |
| Lennox Industries Inc. | 1128 |
19 |
| Midea Group Co., Ltd. | 5083 |
19 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 769 |
18 |
| LG Electronics Inc. | 76219 |
17 |
| Belimo Holding AG | 293 |
16 |
| Tyco Fire & Security GmbH | 3683 |
14 |
| Fujitsu General Limited | 606 |
11 |
| GREE Electric Appliances, Inc. of Zhuhai | 3327 |
11 |
| Carrier Corporation | 3962 |
10 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 274 |
10 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 990 |
10 |
| Johnson Controls Light Commercial IP GmbH | 372 |
9 |
| Trane International Inc. | 1243 |
7 |
| Other owners | 141 |