- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 21/02 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially-straight water tubes
Patent holdings for IPC class F22B 21/02
Total number of patents in this class: 25
10-year publication summary
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3
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4
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5
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1
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1
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1
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1
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0
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1
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alstom Technology Ltd | 1196 |
3 |
| Siemens AG | 24990 |
2 |
| Casale SA | 572 |
2 |
| Cockerill Maintenance & Ingenierie SA | 82 |
2 |
| General Electric Technology GmbH | 1657 |
2 |
| Institute of Engineering Thermophysics, Chinese Academy of Sciences | 48 |
2 |
| ExxonMobil Research And Engineering Company | 2830 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Uop LLC | 4083 |
1 |
| Andritz Technology and Asset Management GmbH | 89 |
1 |
| H2gen Innovations, Inc. | 11 |
1 |
| Huaneng Clean Energy Research Institute | 345 |
1 |
| Integrated Global Services, Inc. | 44 |
1 |
| Mokesys AG | 7 |
1 |
| Tiax LLC | 75 |
1 |
| Turboden SpA | 54 |
1 |
| Steris Instrument Management Services, Inc. | 65 |
1 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
1 |
| Other owners | 0 |