- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24D - Domestic- or space-heating systems, e.g. central heating systems; domestic hot-water supply systems; elements 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: 63
10-year publication summary
5
|
4
|
3
|
14
|
7
|
4
|
11
|
5
|
3
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
6 |
Midea Group Co., Ltd. | 4025 |
5 |
GD Midea Environment Appliances MFG Co., Ltd. | 177 |
5 |
Zibo Environmental Protection Technology Co., Ltd. | 83 |
4 |
I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 152 |
3 |
TPI Corporation | 41 |
3 |
Daikin Industries, Ltd. | 9495 |
2 |
Daikin Europe N.v. | 171 |
2 |
Chunyul Energy Co., Ltd. | 4 |
2 |
Dynacurrent Technologies, Inc. | 11 |
1 |
Formaster S.A. | 49 |
1 |
Imhotep Creation | 2 |
1 |
King, Ray | 4 |
1 |
Kyungdong Navien Co., Ltd. | 566 |
1 |
Ningbo Singfun Electric Appliance Co., Ltd. | 7 |
1 |
Nippon Oil Corporation | 340 |
1 |
Sagemcom Energy & Telecom SAS | 225 |
1 |
Shenzhen Enesoon Science & Technology Co., Ltd. | 48 |
1 |
Sigma DEK Ltd. | 16 |
1 |
University of Science and Technology Beijing | 245 |
1 |
Other owners | 20 |