- 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: 543
10-year publication summary
|
32
|
28
|
51
|
54
|
53
|
56
|
38
|
43
|
31
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 70831 |
105 |
| Carrier Corporation | 4443 |
33 |
| Samsung Electronics Co., Ltd. | 138320 |
32 |
| Mitsubishi Electric Corporation | 44678 |
22 |
| Lennox Industries Inc. | 1096 |
13 |
| Haier Smart Home Co., Ltd. | 5289 |
13 |
| BSH Hausgeräte GmbH | 5446 |
10 |
| Qingdao Haier Refrigerator Co., Ltd | 1508 |
10 |
| Haier US Appliance Solutions, Inc. | 3319 |
9 |
| King Abdulaziz University | 504 |
9 |
| Arcelik A.S. | 3570 |
8 |
| Midea Group Co., Ltd. | 4277 |
7 |
| BSH Bosch und Siemens Hausgerate GmbH | 3055 |
6 |
| Hefei Hualing Co., Ltd. | 461 |
5 |
| Hefei Midea Refrigerator Co., Ltd. | 416 |
5 |
| Therma-Stor LLC | 134 |
5 |
| Vertiv Corporation | 509 |
5 |
| Illinois Tool Works Inc. | 11379 |
4 |
| Honeywell International Inc. | 14009 |
4 |
| Daikin Industries, Ltd. | 9766 |
4 |
| Other owners | 234 |