- 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: 1336
10-year publication summary
|
3
|
11
|
44
|
96
|
165
|
216
|
212
|
238
|
179
|
39
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 74791 |
84 |
| Mitsubishi Electric Corporation | 47511 |
74 |
| Daikin Industries, Ltd. | 10380 |
56 |
| Samsung Electronics Co., Ltd. | 152914 |
48 |
| Hanon Systems | 2059 |
42 |
| Heatcraft Refrigeration Products LLC | 263 |
42 |
| Carrier Corporation | 3971 |
40 |
| Haier Smart Home Co., Ltd. | 5641 |
37 |
| Tyco Fire & Security GmbH | 3534 |
28 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1915 |
26 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2422 |
24 |
| Denso Corporation | 25115 |
22 |
| Trane International Inc. | 1208 |
21 |
| Lennox Industries Inc. | 1091 |
20 |
| Hill Phoenix, Inc. | 294 |
19 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 733 |
16 |
| Energy Recovery, Inc. | 187 |
15 |
| GREE Electric Appliances, Inc. of Zhuhai | 3274 |
15 |
| Valeo Systemes Thermiques | 2805 |
15 |
| Copeland LP | 694 |
15 |
| Other owners | 677 |