- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01K - Steam engine plantssteam accumulatorsengine plants not otherwise provided forengines using special working fluids or cycles
- F01K 7/38 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing typeUse of steam for feed-water heating the engines being of turbine type
Patent holdings for IPC class F01K 7/38
Total number of patents in this class: 148
10-year publication summary
|
8
|
13
|
11
|
11
|
10
|
11
|
10
|
6
|
6
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Malta Inc. | 119 |
31 |
| Mitsubishi Power, Ltd. | 1814 |
9 |
| Siemens AG | 24291 |
7 |
| Mitsubishi Heavy Industries, Ltd. | 8964 |
6 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4040 |
6 |
| Miura Co., Ltd. | 292 |
6 |
| Toshiba Corporation | 12546 |
4 |
| GE Infrastructure Technology, LLC | 6206 |
4 |
| Hitachi, Ltd. | 15819 |
3 |
| Mitsubishi Heavy Industries Compressor Corporation | 633 |
3 |
| Yara International ASA | 873 |
3 |
| CRI HF | 30 |
3 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
2 |
| Echogen Power Systems, LLC | 63 |
2 |
| Foster Wheeler Energy Corporation | 5 |
2 |
| GE-Hitachi Nuclear Energy Americas LLC | 441 |
2 |
| General Electric Technology GmbH | 1355 |
2 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
2 |
| Xi'an Jiaotong University | 687 |
2 |
| Toshiba Energy Systems & Solutions Corp. | 1124 |
2 |
| Other owners | 47 |