- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F25D - Refrigerators; cold rooms; ice-boxes; cooling 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: 602
10-year publication summary
39
|
36
|
42
|
52
|
54
|
43
|
63
|
43
|
48
|
14
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Electronics Inc. | 69257 |
49 |
Samsung Electronics Co., Ltd. | 131630 |
41 |
Haier Smart Home Co., Ltd. | 4882 |
38 |
Qingdao Haier Refrigerator Co., Ltd | 1378 |
36 |
Mitsubishi Electric Corporation | 43934 |
31 |
BSH Hausgeräte GmbH | 5384 |
28 |
BSH Bosch und Siemens Hausgerate GmbH | 3236 |
25 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
20 |
Whirlpool Corporation | 4238 |
18 |
Arcelik A.S. | 3617 |
16 |
Haier US Appliance Solutions, Inc. | 3178 |
16 |
Panasonic Corporation | 20786 |
11 |
Anthony, Inc. | 130 |
10 |
Hefei Hualing Co., Ltd. | 425 |
10 |
Midea Group Co., Ltd. | 4025 |
10 |
Carrier Corporation | 4759 |
8 |
Hill Phoenix, Inc. | 235 |
8 |
Hussmann Corporation | 217 |
7 |
Qingdao Haier Joint Stock Co., Ltd. | 598 |
7 |
PHC Holdings Corporation | 701 |
7 |
Other owners | 206 |