- 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: 590
10-year publication summary
|
28
|
51
|
54
|
53
|
56
|
39
|
44
|
32
|
41
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75694 |
105 |
| Samsung Electronics Co., Ltd. | 157719 |
53 |
| Carrier Corporation | 3955 |
30 |
| Mitsubishi Electric Corporation | 48018 |
22 |
| Haier Smart Home Co., Ltd. | 5712 |
15 |
| Lennox Industries Inc. | 1105 |
13 |
| BSH Hausgeräte GmbH | 5624 |
12 |
| Haier US Appliance Solutions, Inc. | 4033 |
11 |
| Qingdao Haier Refrigerator Co., Ltd | 1652 |
10 |
| King Abdulaziz University | 521 |
9 |
| Arcelik A.S. | 3369 |
8 |
| Midea Group Co., Ltd. | 5028 |
7 |
| BSH Bosch und Siemens Hausgerate GmbH | 2476 |
6 |
| Elemental Machines, Inc. | 88 |
5 |
| Heatcraft Refrigeration Products LLC | 275 |
5 |
| Hefei Hualing Co., Ltd. | 564 |
5 |
| Hefei Midea Refrigerator Co., Ltd. | 519 |
5 |
| Illinois Tool Works Inc. | 11863 |
4 |
| Honeywell International Inc. | 12778 |
4 |
| Texas Instruments Incorporated | 19672 |
4 |
| Other owners | 257 |