- 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: 51
10-year publication summary
|
1
|
5
|
6
|
5
|
3
|
4
|
4
|
2
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Washington University | 1535 |
6 |
| XDI Holdings, LLC | 39 |
4 |
| World Energy Systems Incorporated | 26 |
3 |
| Betser-zilevitch, Maoz | 13 |
2 |
| Geesco Co., Ltd. | 17 |
2 |
| General Energy Recovery Inc. | 17 |
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 | 87 |
2 |
| SGL Carbon SE | 386 |
2 |
| SunCor Energy Inc. | 768 |
2 |
| Heat IP Holdco, LLC | 47 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8515 |
1 |
| The Babcock & Wilcox Company | 175 |
1 |
| Chromalox, Inc. | 64 |
1 |
| Clean Energy Systems, Inc. | 19 |
1 |
| EN-FAB, Inc. | 12 |
1 |
| Exponential Technologies, Inc. | 36 |
1 |
| GREE Electric Appliances, Inc. of Zhuhai | 3149 |
1 |
| Guangdong University of Technology | 528 |
1 |
| Ideas Well Done, LLC | 2 |
1 |
| Other owners | 13 |