- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 21/24 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent in serpentine or sinuous form
Patent holdings for IPC class F22B 21/24
Total number of patents in this class: 11
10-year publication summary
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1
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0
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2
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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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2
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 30018 |
3 |
| Siemens AG | 24556 |
1 |
| Balcke-Durr GmbH | 17 |
1 |
| China Petroleum & Chemical Corporation | 1804 |
1 |
| Exergy S.p.A. | 25 |
1 |
| Simoneau P.I. Inc. | 14 |
1 |
| Superior Boiler, LLC | 5 |
1 |
| Steam Injection Technology Service Center of Shenglioilfield Sinopec | 3 |
1 |
| RD Estate GmbH & Co. KG | 8 |
1 |
| Other owners | 0 |