- 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: 157
10-year publication summary
|
11
|
10
|
17
|
13
|
5
|
7
|
5
|
1
|
4
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valmet Technologies Oy | 288 |
18 |
| Foster Wheeler Energia Oy | 42 |
14 |
| Institute of Engineering Thermophysics, Chinese Academy of Sciences | 54 |
9 |
| Sumitomo Shi FW Energia Oy | 62 |
7 |
| AMEC Foster Wheeler Energia Oy | 23 |
5 |
| Gates Foundation, Gates, William H., Iiiindividualwashington | 24 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
4 |
| Alstom Technology Ltd | 1045 |
4 |
| Doosan Lentjes GmbH | 49 |
4 |
| Andritz Technology and Asset Management GmbH | 78 |
3 |
| ArcelorMittal | 2672 |
3 |
| Endev Oy | 7 |
3 |
| IHI Corporation | 3535 |
3 |
| Korea Institute of Energy Research | 898 |
3 |
| Bioshare AB | 14 |
3 |
| Siemens AG | 24029 |
2 |
| Gas Technology Institute | 336 |
2 |
| General Electric Technology GmbH | 1337 |
2 |
| Korea East-West Power Co., Ltd. | 31 |
2 |
| Korea Electric Power Corporation | 463 |
2 |
| Other owners | 59 |