- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25B - Refrigeration machines, plants or systemscombined heating and refrigeration systemsheat pump systems
- F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
Patent holdings for IPC class F25B 41/20
Total number of patents in this class: 1290
10-year publication summary
|
2
|
3
|
11
|
44
|
96
|
165
|
216
|
212
|
237
|
180
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73936 |
82 |
| Mitsubishi Electric Corporation | 47065 |
74 |
| Daikin Industries, Ltd. | 10169 |
56 |
| Samsung Electronics Co., Ltd. | 149582 |
45 |
| Heatcraft Refrigeration Products LLC | 264 |
41 |
| Carrier Corporation | 3993 |
40 |
| Hanon Systems | 2016 |
40 |
| Haier Smart Home Co., Ltd. | 5554 |
37 |
| Tyco Fire & Security GmbH | 3480 |
26 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1886 |
26 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2393 |
24 |
| Denso Corporation | 24842 |
22 |
| Trane International Inc. | 1205 |
22 |
| Lennox Industries Inc. | 1127 |
19 |
| Hill Phoenix, Inc. | 283 |
17 |
| Energy Recovery, Inc. | 183 |
15 |
| Copeland LP | 693 |
15 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 694 |
14 |
| GREE Electric Appliances, Inc. of Zhuhai | 3260 |
14 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 597 |
14 |
| Other owners | 647 |