- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25D - Refrigeratorscold roomsice-boxescooling or freezing apparatus not otherwise provided for
- F25D 21/00 - DefrostingPreventing frostingRemoving condensed or defrost water
Patent holdings for IPC class F25D 21/00
Total number of patents in this class: 561
10-year publication summary
|
32
|
28
|
51
|
54
|
53
|
56
|
39
|
43
|
31
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 72807 |
105 |
| Samsung Electronics Co., Ltd. | 145416 |
40 |
| Carrier Corporation | 4354 |
33 |
| Mitsubishi Electric Corporation | 45962 |
22 |
| Lennox Industries Inc. | 1116 |
13 |
| Haier Smart Home Co., Ltd. | 5441 |
13 |
| BSH Hausgeräte GmbH | 5518 |
11 |
| Haier US Appliance Solutions, Inc. | 3584 |
10 |
| Qingdao Haier Refrigerator Co., Ltd | 1564 |
10 |
| King Abdulaziz University | 508 |
9 |
| Arcelik A.S. | 3525 |
8 |
| Midea Group Co., Ltd. | 4526 |
7 |
| BSH Bosch und Siemens Hausgerate GmbH | 2919 |
6 |
| Hefei Hualing Co., Ltd. | 485 |
5 |
| Hefei Midea Refrigerator Co., Ltd. | 441 |
5 |
| Therma-Stor LLC | 134 |
5 |
| Vertiv Corporation | 594 |
5 |
| Illinois Tool Works Inc. | 11454 |
4 |
| Honeywell International Inc. | 13525 |
4 |
| Daikin Industries, Ltd. | 9991 |
4 |
| Other owners | 242 |