- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 33/12 - Self-contained steam boilers, i.e. comprising as a unit the steam boiler, the combustion apparatus, the fuel storage, accessory machines, and equipment
Patent holdings for IPC class F22B 33/12
Total number of patents in this class: 7
10-year publication summary
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1
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1
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0
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1
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1
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2
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0
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0
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1
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1
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Washington University | 1473 |
3 |
| Clean Energy Systems, Inc. | 20 |
2 |
| J. Wagner GmbH | 190 |
1 |
| Kyungdong Navien Co., Ltd. | 566 |
1 |
| Other owners | 0 |