- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24D - Domestic- or space-heating systems, e.g. central heating systemsdomestic hot-water supply systemselements or components therefor
- F24D 3/02 - Hot-water central heating systems with forced circulation, e.g. by pumps
Patent holdings for IPC class F24D 3/02
Total number of patents in this class: 139
10-year publication summary
|
20
|
26
|
29
|
19
|
16
|
20
|
10
|
7
|
12
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Grundfos Holding A/S | 548 |
11 |
| Kyungdong Navien Co., Ltd. | 598 |
9 |
| Daikin Industries, Ltd. | 9920 |
4 |
| Intellihot, Inc. | 132 |
4 |
| SEMCO LLC | 28 |
4 |
| Schneider Electric Controls UK Limited | 10 |
4 |
| Dryair Manufacturing Corp. | 18 |
3 |
| Noritz Corporation | 264 |
3 |
| Computime, Ltd. | 52 |
2 |
| Dynacurrent Technologies, Inc. | 9 |
2 |
| E.ON Sverige Aktiebolag | 87 |
2 |
| F.W. Webb Company | 35 |
2 |
| Huaneng Clean Energy Research Institute | 395 |
2 |
| Northeastern University | 534 |
2 |
| Progress Profiles SpA | 95 |
2 |
| Purpose Company Limited | 53 |
2 |
| Rheem Manufacturing Company | 953 |
2 |
| Rinnai America Corporation | 95 |
2 |
| Trane International Inc. | 1167 |
2 |
| Watts Regulator Co. | 303 |
2 |
| Other owners | 73 |