- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 31/00 - Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus
Patent holdings for IPC class F22B 31/00
Total number of patents in this class: 158
10-year publication summary
|
15
|
13
|
11
|
10
|
17
|
13
|
3
|
7
|
4
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Foster Wheeler Energia Oy | 53 |
18 |
| Valmet Technologies Oy | 284 |
16 |
| Institute of Engineering Thermophysics, Chinese Academy of Sciences | 48 |
9 |
| Sumitomo Shi FW Energia Oy | 48 |
7 |
| AMEC Foster Wheeler Energia Oy | 23 |
5 |
| Bill & Melinda Gates Foundation, William H. Gates III and Melinda F. Gates, both US citizens | 28 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
4 |
| Alstom Technology Ltd | 1196 |
4 |
| Doosan Lentjes GmbH | 48 |
4 |
| Siemens AG | 24990 |
3 |
| ArcelorMittal | 1887 |
3 |
| Endev Oy | 7 |
3 |
| IHI Corporation | 3268 |
3 |
| Korea Institute of Energy Research | 803 |
3 |
| Gas Technology Institute | 374 |
2 |
| General Electric Technology GmbH | 1657 |
2 |
| Korea East-West Power Co., Ltd. | 29 |
2 |
| Korea Electric Power Corporation | 467 |
2 |
| Korea South-East Power Co., Ltd. | 33 |
2 |
| Korea Southern Power Co., Ltd. | 5 |
2 |
| Other owners | 59 |