- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 1/22 - Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
Patent holdings for IPC class F22B 1/22
Total number of patents in this class: 49
10-year publication summary
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4
|
1
|
5
|
6
|
5
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3
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4
|
4
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2
|
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 |
6 |
| XDI Holdings, LLC | 68 |
6 |
| World Energy Systems Incorporated | 27 |
3 |
| Betser-zilevitch, Maoz | 13 |
2 |
| Geesco Co., Ltd. | 17 |
2 |
| General Energy Recovery Inc. | 16 |
2 |
| Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources | 105 |
2 |
| Her Majesty The Queen in Right of Canada AS represented by The Minister of Natural Resources Canada | 89 |
2 |
| SGL Carbon SE | 388 |
2 |
| SunCor Energy Inc. | 838 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| The Babcock & Wilcox Company | 184 |
1 |
| Chromalox, Inc. | 63 |
1 |
| Clean Energy Systems, Inc. | 20 |
1 |
| Exponential Technologies, Inc. | 37 |
1 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
1 |
| Guangdong University of Technology | 466 |
1 |
| Ideas Well Done, LLC | 2 |
1 |
| IHI Corporation | 3268 |
1 |
| Linde Aktiengesellschaft | 1600 |
1 |
| Other owners | 10 |