- 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: 1230
10-year publication summary
|
2
|
3
|
11
|
44
|
96
|
165
|
216
|
212
|
236
|
127
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73476 |
79 |
| Mitsubishi Electric Corporation | 46346 |
73 |
| Daikin Industries, Ltd. | 10058 |
56 |
| Samsung Electronics Co., Ltd. | 147334 |
44 |
| Heatcraft Refrigeration Products LLC | 260 |
39 |
| Carrier Corporation | 4292 |
37 |
| Hanon Systems | 1970 |
37 |
| Haier Smart Home Co., Ltd. | 5483 |
36 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1869 |
25 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2376 |
23 |
| Denso Corporation | 24404 |
22 |
| Trane International Inc. | 1193 |
20 |
| Tyco Fire & Security GmbH | 3199 |
19 |
| Lennox Industries Inc. | 1130 |
17 |
| Energy Recovery, Inc. | 176 |
15 |
| Hill Phoenix, Inc. | 271 |
15 |
| Copeland LP | 700 |
15 |
| Johnson Controls Tyco IP Holdings LLP | 633 |
14 |
| Booz Allen Hamilton Inc. | 285 |
13 |
| GREE Electric Appliances, Inc. of Zhuhai | 3247 |
13 |
| Other owners | 618 |