- 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: 1214
10-year publication summary
|
4
|
4
|
11
|
47
|
100
|
173
|
221
|
217
|
240
|
114
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 72962 |
79 |
| Mitsubishi Electric Corporation | 46037 |
73 |
| Daikin Industries, Ltd. | 9991 |
55 |
| Samsung Electronics Co., Ltd. | 145864 |
44 |
| Heatcraft Refrigeration Products LLC | 257 |
39 |
| Carrier Corporation | 4348 |
36 |
| Haier Smart Home Co., Ltd. | 5452 |
35 |
| Hanon Systems | 1935 |
34 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1861 |
25 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2368 |
23 |
| Denso Corporation | 24259 |
21 |
| Trane International Inc. | 1180 |
20 |
| Tyco Fire & Security GmbH | 3224 |
20 |
| Lennox Industries Inc. | 1121 |
17 |
| Hill Phoenix, Inc. | 268 |
15 |
| Copeland LP | 701 |
15 |
| Energy Recovery, Inc. | 176 |
14 |
| Johnson Controls Tyco IP Holdings LLP | 640 |
14 |
| Booz Allen Hamilton Inc. | 279 |
13 |
| GREE Electric Appliances, Inc. of Zhuhai | 3242 |
13 |
| Other owners | 609 |