- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F25D - Refrigerators; cold rooms; ice-boxes; cooling or freezing apparatus not otherwise provided for
- F25D 21/00 - Defrosting; Preventing frosting; Removing condensed or defrost water
Patent holdings for IPC class F25D 21/00
Total number of patents in this class: 550
10-year publication summary
|
48
|
32
|
28
|
51
|
54
|
53
|
56
|
38
|
44
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
104 |
| Carrier Corporation | 4759 |
29 |
| Samsung Electronics Co., Ltd. | 131630 |
26 |
| Mitsubishi Electric Corporation | 43934 |
25 |
| Haier Smart Home Co., Ltd. | 4882 |
13 |
| Lennox Industries Inc. | 1088 |
12 |
| Haier US Appliance Solutions, Inc. | 3178 |
10 |
| Qingdao Haier Refrigerator Co., Ltd | 1378 |
10 |
| BSH Hausgeräte GmbH | 5384 |
9 |
| King Abdulaziz University | 511 |
9 |
| Arcelik A.S. | 3617 |
8 |
| Midea Group Co., Ltd. | 4025 |
8 |
| BSH Bosch und Siemens Hausgerate GmbH | 3236 |
6 |
| Electrolux Home Products, Inc. | 1220 |
6 |
| Hefei Hualing Co., Ltd. | 425 |
6 |
| Hefei Midea Refrigerator Co., Ltd. | 379 |
6 |
| Whirlpool Corporation | 4238 |
5 |
| Daikin Industries, Ltd. | 9495 |
5 |
| Therma-Stor LLC | 134 |
5 |
| Vertiv Corporation | 402 |
5 |
| Other owners | 243 |