- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22D - Preheating, or accumulating preheated, feed-water for steam generationfeed-water supply for steam generationcontrolling water level for steam generationauxiliary devices for promoting water circulation within steam boilers
- F22D 3/04 - Accumulators for preheated water combined with steam accumulators
Patent holdings for IPC class F22D 3/04
Total number of patents in this class: 3
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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0
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1
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0
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0
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0
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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
|
|---|---|---|
| Enero Inventions | 4 |
1 |
| BlueLagoon Energy Technologies Ltd | 1 |
1 |
| Wisdri Engineering & Research Incorporation Limited | 222 |
1 |
| Other owners | 0 |