- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25B - Refrigeration machines, plants or systemscombined heating and refrigeration systemsheat pump systems
- F25B 47/02 - Defrosting cycles
Patent holdings for IPC class F25B 47/02
Total number of patents in this class: 1480
10-year publication summary
|
96
|
120
|
126
|
114
|
116
|
111
|
88
|
99
|
85
|
77
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 46926 |
307 |
| Daikin Industries, Ltd. | 10166 |
121 |
| LG Electronics Inc. | 73772 |
71 |
| Haier Smart Home Co., Ltd. | 5542 |
51 |
| Denso Corporation | 24783 |
45 |
| Carrier Corporation | 4009 |
34 |
| Heatcraft Refrigeration Products LLC | 262 |
30 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2390 |
30 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1883 |
28 |
| GREE Electric Appliances, Inc. of Zhuhai | 3254 |
27 |
| Panasonic Corporation | 19966 |
22 |
| Midea Group Co., Ltd. | 4678 |
22 |
| Fujitsu General Limited | 627 |
21 |
| Samsung Electronics Co., Ltd. | 149087 |
20 |
| Qingdao Haier Refrigerator Co., Ltd | 1597 |
20 |
| Sanden Corporation | 976 |
20 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
19 |
| Lennox Industries Inc. | 1123 |
19 |
| Hill Phoenix, Inc. | 279 |
15 |
| Toshiba Carrier Corporation | 490 |
15 |
| Other owners | 543 |