- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01K - Steam engine plantssteam accumulatorsengine plants not otherwise provided forengines using special working fluids or cycles
- F01K 7/44 - Use of steam for feed-water heating and another purpose
Patent holdings for IPC class F01K 7/44
Total number of patents in this class: 44
10-year publication summary
|
6
|
4
|
3
|
4
|
5
|
2
|
2
|
2
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24561 |
5 |
| Hitachi, Ltd. | 15434 |
5 |
| General Electric Technology GmbH | 1456 |
5 |
| GE-Hitachi Nuclear Energy Americas LLC | 417 |
2 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
2 |
| Miura Co., Ltd. | 286 |
2 |
| GE Infrastructure Technology, LLC | 6192 |
2 |
| Heat IP Holdco, LLC | 48 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8647 |
1 |
| Alstom Technology Ltd | 1112 |
1 |
| Babcock-Hitachi Kabushiki Kaisha | 103 |
1 |
| Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources | 105 |
1 |
| Hitachi-GE Nuclear Energy, Ltd. | 281 |
1 |
| Indian Institute of Science | 314 |
1 |
| Kurita Water Industries Ltd. | 1185 |
1 |
| Marine Turbine Technologies, L.L.C. | 8 |
1 |
| Metawater Co., Ltd. | 192 |
1 |
| Mitsubishi Hitachi Power Systems Europe GmbH | 40 |
1 |
| Saga University | 149 |
1 |
| Triveni Turbine Limited | 4 |
1 |
| Other owners | 7 |