- 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 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: 131
10-year publication summary
9
|
19
|
26
|
29
|
19
|
16
|
20
|
9
|
7
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Grundfos Holding A/S | 506 |
11 |
Kyungdong Navien Co., Ltd. | 566 |
7 |
Intellihot, Inc. | 114 |
5 |
Daikin Industries, Ltd. | 9495 |
4 |
SEMCO LLC | 30 |
4 |
Schneider Electric Controls UK Limited | 10 |
4 |
Dynacurrent Technologies, Inc. | 11 |
3 |
Noritz Corporation | 255 |
3 |
Computime, Ltd. | 43 |
2 |
E.ON Sverige Aktiebolag | 87 |
2 |
Huaneng Clean Energy Research Institute | 345 |
2 |
MacPherson Engineering Inc. | 8 |
2 |
Northeastern University | 493 |
2 |
Progress Profiles SpA | 93 |
2 |
Purpose Company Limited | 54 |
2 |
Rheem Manufacturing Company | 861 |
2 |
Rinnai America Corporation | 95 |
2 |
Watts Regulator Co. | 284 |
2 |
Ademco Inc. | 1374 |
2 |
Hydronics, L.L.C. | 2 |
2 |
Other owners | 66 |