- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 3/04 - Other methods of steam generation; Steam boilers not provided for in other groups of this subclass by drop in pressure of high-pressure hot water within pressure-reducing chambers, e.g. in accumulators
Patent holdings for IPC class F22B 3/04
Total number of patents in this class: 51
10-year publication summary
|
6
|
4
|
1
|
4
|
3
|
2
|
3
|
5
|
4
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fulton Group N.A., Inc. | 48 |
3 |
| TLV Co., Ltd. | 336 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
| Brais Malouin and Associates Inc. | 2 |
2 |
| Ingenica Ingenierie Industrielle | 2 |
2 |
| Steamwand International Pty Ltd | 3 |
2 |
| Siemens AG | 24990 |
1 |
| The Regents of the University of California | 18943 |
1 |
| Hitachi, Ltd. | 16452 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
1 |
| Dow Corning Corporation | 1072 |
1 |
| Ansaldo Energia S.p.A. | 131 |
1 |
| Ausra, Inc. | 11 |
1 |
| Daicel Corporation | 2128 |
1 |
| Dalian University of Technology | 1387 |
1 |
| Efficient Energy GmbH | 60 |
1 |
| Enero Inventions | 5 |
1 |
| Enviro Power LLC | 2 |
1 |
| Guangdong University of Technology | 466 |
1 |
| Other owners | 23 |