- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25B - Refrigeration machines, plants or systemscombined heating and refrigeration systemsheat pump systems
- F25B 41/34 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
Patent holdings for IPC class F25B 41/34
Total number of patents in this class: 237
10-year publication summary
|
0
|
1
|
5
|
20
|
17
|
28
|
39
|
26
|
30
|
45
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zhejiang DunAn Artificial Environment Co., Ltd | 720 |
66 |
| LG Electronics Inc. | 75910 |
11 |
| Haier Smart Home Co., Ltd. | 5732 |
9 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1928 |
9 |
| Carrier Corporation | 3950 |
8 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2435 |
7 |
| Denso Corporation | 25676 |
6 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2101 |
6 |
| Hill Phoenix, Inc. | 306 |
5 |
| Mitsubishi Electric Corporation | 48236 |
4 |
| BYD Company Limited | 6549 |
4 |
| Guangdong Meizhi Compressor Co., Ltd. | 218 |
4 |
| Haier US Appliance Solutions, Inc. | 4096 |
4 |
| Lennox Industries Inc. | 1114 |
4 |
| Midea Group Co., Ltd. | 5060 |
4 |
| Danfoss A/S | 1446 |
4 |
| Samsung Electronics Co., Ltd. | 158605 |
3 |
| Daikin Industries, Ltd. | 10513 |
3 |
| GREE Electric Appliances, Inc. of Zhuhai | 3317 |
3 |
| Parker-Hannifin Corporation | 1042 |
3 |
| Other owners | 70 |