- 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: 653
10-year publication summary
|
35
|
42
|
50
|
52
|
43
|
59
|
45
|
49
|
38
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73588 |
62 |
| Samsung Electronics Co., Ltd. | 147787 |
51 |
| Haier Smart Home Co., Ltd. | 5492 |
42 |
| Qingdao Haier Refrigerator Co., Ltd | 1579 |
40 |
| Mitsubishi Electric Corporation | 46547 |
32 |
| BSH Hausgeräte GmbH | 5543 |
30 |
| BSH Bosch und Siemens Hausgerate GmbH | 2785 |
23 |
| Panasonic Intellectual Property Management Co., Ltd. | 32052 |
21 |
| Whirlpool Corporation | 4442 |
19 |
| Haier US Appliance Solutions, Inc. | 3706 |
18 |
| Anthony, Inc. | 145 |
12 |
| Panasonic Corporation | 20036 |
11 |
| Arcelik A.S. | 3487 |
11 |
| Hefei Hualing Co., Ltd. | 497 |
11 |
| Midea Group Co., Ltd. | 4612 |
11 |
| Hill Phoenix, Inc. | 274 |
9 |
| Carrier Corporation | 4299 |
8 |
| Hefei Midea Refrigerator Co., Ltd. | 452 |
7 |
| Hussmann Corporation | 224 |
7 |
| Qingdao Haier Joint Stock Co., Ltd. | 596 |
7 |
| Other owners | 221 |