- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25D - Refrigeratorscold roomsice-boxescooling or freezing apparatus not otherwise provided for
- F25D 21/04 - Preventing the formation of frost or condensate
Patent holdings for IPC class F25D 21/04
Total number of patents in this class: 657
10-year publication summary
|
42
|
50
|
52
|
43
|
59
|
45
|
49
|
38
|
31
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 74373 |
63 |
| Samsung Electronics Co., Ltd. | 151303 |
51 |
| Haier Smart Home Co., Ltd. | 5597 |
42 |
| Qingdao Haier Refrigerator Co., Ltd | 1614 |
40 |
| Mitsubishi Electric Corporation | 47338 |
32 |
| BSH Hausgeräte GmbH | 5567 |
30 |
| BSH Bosch und Siemens Hausgerate GmbH | 2645 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 32968 |
21 |
| Whirlpool Corporation | 4516 |
19 |
| Haier US Appliance Solutions, Inc. | 3884 |
18 |
| Anthony, Inc. | 148 |
12 |
| Panasonic Corporation | 19882 |
11 |
| Arcelik A.S. | 3416 |
11 |
| Hefei Hualing Co., Ltd. | 510 |
11 |
| Midea Group Co., Ltd. | 4732 |
11 |
| Hill Phoenix, Inc. | 287 |
9 |
| Carrier Corporation | 3977 |
8 |
| Hefei Midea Refrigerator Co., Ltd. | 465 |
7 |
| Hussmann Corporation | 224 |
7 |
| Qingdao Haier Joint Stock Co., Ltd. | 596 |
7 |
| Other owners | 225 |