- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24D - Domestic- or space-heating systems, e.g. central heating systemsdomestic hot-water supply systemselements or components therefor
- F24D 13/04 - Electric heating systems using electric heating of heat-transfer fluid in separate units of the system
Patent holdings for IPC class F24D 13/04
Total number of patents in this class: 60
10-year publication summary
|
3
|
2
|
13
|
7
|
4
|
11
|
5
|
3
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GREE Electric Appliances, Inc. of Zhuhai | 3257 |
6 |
| Midea Group Co., Ltd. | 4664 |
5 |
| GD Midea Environment Appliances MFG Co., Ltd. | 213 |
5 |
| Zibo Environmental Protection Technology Co., Ltd. | 83 |
4 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 169 |
3 |
| TPI Corporation | 41 |
3 |
| Daikin Industries, Ltd. | 10146 |
2 |
| Daikin Europe N.v. | 207 |
2 |
| Dynacurrent Technologies, Inc. | 10 |
1 |
| Formaster S.A. | 49 |
1 |
| Imhotep Creation | 2 |
1 |
| Intellihot, Inc. | 132 |
1 |
| Ningbo Singfun Electric Appliance Co., Ltd. | 11 |
1 |
| Sagemcom Energy & Telecom SAS | 260 |
1 |
| Shenzhen Enesoon Science & Technology Co., Ltd. | 48 |
1 |
| Trane International Inc. | 1201 |
1 |
| University of Science and Technology Beijing | 294 |
1 |
| Valeo Japan Co., Ltd. | 306 |
1 |
| Webasto SE | 1177 |
1 |
| KB Technology Co., Ltd. | 4 |
1 |
| Other owners | 18 |