- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 31/00 - Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatusArrangements or dispositions of combustion apparatus
Patent holdings for IPC class F22B 31/00
Total number of patents in this class: 161
10-year publication summary
|
13
|
11
|
9
|
16
|
12
|
4
|
7
|
4
|
1
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Foster Wheeler Energia Oy | 47 |
18 |
| Valmet Technologies Oy | 286 |
17 |
| Institute of Engineering Thermophysics, Chinese Academy of Sciences | 49 |
9 |
| Sumitomo Shi FW Energia Oy | 58 |
7 |
| AMEC Foster Wheeler Energia Oy | 23 |
5 |
| Gates Foundation, Gates, William H., Iiiindividualwashington | 25 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8783 |
4 |
| Alstom Technology Ltd | 1094 |
4 |
| Doosan Lentjes GmbH | 47 |
4 |
| Andritz Technology and Asset Management GmbH | 89 |
3 |
| ArcelorMittal | 2319 |
3 |
| Endev Oy | 7 |
3 |
| IHI Corporation | 3449 |
3 |
| Korea Institute of Energy Research | 864 |
3 |
| Siemens AG | 24409 |
2 |
| Gas Technology Institute | 349 |
2 |
| General Electric Technology GmbH | 1373 |
2 |
| Korea East-West Power Co., Ltd. | 31 |
2 |
| Korea Electric Power Corporation | 468 |
2 |
| Korea South-East Power Co., Ltd. | 36 |
2 |
| Other owners | 61 |