- 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: 1517
10-year publication summary
|
121
|
132
|
117
|
122
|
114
|
90
|
105
|
88
|
83
|
48
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48048 |
309 |
| Daikin Industries, Ltd. | 10504 |
121 |
| LG Electronics Inc. | 75818 |
74 |
| Haier Smart Home Co., Ltd. | 5716 |
52 |
| Denso Corporation | 25579 |
45 |
| Carrier Corporation | 3951 |
36 |
| Heatcraft Refrigeration Products LLC | 282 |
34 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2429 |
30 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1922 |
28 |
| GREE Electric Appliances, Inc. of Zhuhai | 3317 |
27 |
| Fujitsu General Limited | 597 |
25 |
| Midea Group Co., Ltd. | 5034 |
25 |
| Panasonic Corporation | 18962 |
22 |
| Qingdao Haier Refrigerator Co., Ltd | 1652 |
21 |
| Samsung Electronics Co., Ltd. | 157946 |
20 |
| Sanden Corporation | 1031 |
20 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
19 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2091 |
16 |
| Hill Phoenix, Inc. | 306 |
16 |
| Mayekawa Mfg. Co., Ltd. | 367 |
15 |
| Other owners | 562 |