- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25B - Refrigeration machines, plants or systemscombined heating and refrigeration systemsheat pump systems
- F25B 6/04 - Compression machines, plants or systems, with several condenser circuits arranged in series
Patent holdings for IPC class F25B 6/04
Total number of patents in this class: 507
10-year publication summary
|
47
|
44
|
74
|
62
|
37
|
36
|
50
|
33
|
21
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 45811 |
68 |
| Valeo Systemes Thermiques | 2696 |
44 |
| Denso Corporation | 24120 |
39 |
| Sanden Corporation | 954 |
29 |
| Carrier Corporation | 4356 |
25 |
| Therma-Stor LLC | 134 |
22 |
| Daikin Industries, Ltd. | 9957 |
18 |
| LG Electronics Inc. | 72473 |
13 |
| Hanon Systems | 1894 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 30967 |
7 |
| Copeland LP | 686 |
6 |
| Panasonic Corporation | 20173 |
5 |
| Climate Master, Inc. | 35 |
5 |
| Lennox Industries Inc. | 1107 |
5 |
| Rheem Manufacturing Company | 970 |
5 |
| Shinwa Controls Co., Ltd. | 158 |
5 |
| Samsung Electronics Co., Ltd. | 144143 |
4 |
| Johnson Controls Technology Company | 1454 |
4 |
| Heatcraft Refrigeration Products LLC | 253 |
4 |
| Hill Phoenix, Inc. | 262 |
4 |
| Other owners | 182 |