- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 29/02 - Steam boilers of forced-flow type of forced-circulation type
Patent holdings for IPC class F22B 29/02
Total number of patents in this class: 28
10-year publication summary
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2
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0
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0
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1
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0
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1
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2
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1
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2
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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 | 24237 |
3 |
| Mackwell & Co. Limited | 3 |
3 |
| The Cleaver-Brooks Company, Inc. | 64 |
2 |
| Constellation Energy Generation, LLC | 31 |
2 |
| LG Electronics Inc. | 74848 |
1 |
| Shell Internationale Research Maatschappij B.V. | 3474 |
1 |
| Cockerill Maintenance & Ingenierie SA | 79 |
1 |
| ConocoPhillips Company | 1703 |
1 |
| Cosmo Oil Co., Ltd. | 179 |
1 |
| General Electric Technology GmbH | 1346 |
1 |
| Hipvap Technologies Inc. | 5 |
1 |
| Inpex Corporation | 140 |
1 |
| Japan Oil, Gas and Metals National Corporation | 186 |
1 |
| Japan Petroleum Exploration Co., Ltd. | 139 |
1 |
| JX Nippon Oil & Energy Corporation | 978 |
1 |
| Nippon Steel & Sumikin Engineering Co., Ltd. | 169 |
1 |
| Siemens Concentrated Solar Power Ltd. | 49 |
1 |
| National Technology & Engineering Solutions of Sandia, LLC | 1927 |
1 |
| Steris Instrument Management Services, Inc. | 65 |
1 |
| Mackwell Locomotive Company Limited | 1 |
1 |
| Other owners | 2 |