- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01K - Steam engine plantssteam accumulatorsengine plants not otherwise provided forengines using special working fluids or cycles
- F01K 3/04 - Use of accumulators and specific engine typesControl thereof the engine being of multiple-inlet-pressure type
Patent holdings for IPC class F01K 3/04
Total number of patents in this class: 5
10-year publication summary
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0
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0
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0
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0
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1
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 23972 |
2 |
| Electricite de France | 752 |
1 |
| Equitherm S.A R.L. | 3 |
1 |
| GE Infrastructure Technology, LLC | 6153 |
1 |
| Other owners | 0 |