- 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 9/00 - Central heating systems employing combinations of heat-transfer fluids covered by two or more of groups
Patent holdings for IPC class F24D 9/00
Total number of patents in this class: 20
10-year publication summary
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1
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2
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0
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2
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0
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2
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0
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3
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1
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1
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyungdong Navien Co., Ltd. | 566 |
4 |
| Carrier Corporation | 4759 |
2 |
| Air Hydronic Product Solutions, Inc. | 2 |
2 |
| Tsinghua University | 5426 |
1 |
| Allied Air Enterprises Inc. | 6 |
1 |
| Intellihot, Inc. | 114 |
1 |
| MacPherson Engineering Inc. | 8 |
1 |
| Sagemcom Energy & Telecom SAS | 225 |
1 |
| Unick Corporation | 46 |
1 |
| 1236220 B.C. Ltd | 6 |
1 |
| Agridea Patents Ltd. | 1 |
1 |
| Beijing Eert Technology Development Co., Ltd | 2 |
1 |
| Rheem New Zealand Limited | 1 |
1 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
1 |
| Totalenergies Onetech | 536 |
1 |
| Other owners | 0 |