- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 3/08 - Other methods of steam generationSteam boilers not provided for in other groups of this subclass at critical or supercritical pressure values
Patent holdings for IPC class F22B 3/08
Total number of patents in this class: 29
10-year publication summary
|
4
|
1
|
4
|
0
|
2
|
2
|
1
|
3
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tounetsu Co., Ltd. | 27 |
4 |
| Rolls-Royce Corporation | 1733 |
3 |
| Peregrine Turbine Technologies, LLC | 15 |
2 |
| Rolls-Royce North American Technologies, Inc. | 1153 |
2 |
| Siemens AG | 24563 |
1 |
| Rolls-Royce PLC | 3000 |
1 |
| Centre de Recherches Metallurgiques ASBL - Centrum voor Research in de Metallurgie VZW | 44 |
1 |
| General Electric Technology GmbH | 1599 |
1 |
| Huaneng Clean Energy Research Institute | 376 |
1 |
| Renmatix, Inc. | 131 |
1 |
| Shanghai Boiler Works Ltd | 26 |
1 |
| Siemens Concentrated Solar Power Ltd. | 49 |
1 |
| Taizhou Dajiang Industry Co., Ltd. | 14 |
1 |
| Unibell Co., Ltd. | 2 |
1 |
| Xi'an Jiaotong University | 629 |
1 |
| DongFang Boiler Group Co., Ltd. | 13 |
1 |
| National Technology & Engineering Solutions of Sandia, LLC | 1889 |
1 |
| Universidad del Pais Vasco-Euskal Herriko Unibertsitatea | 100 |
1 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 300 |
1 |
| Mitsubishi Power, Ltd. | 1744 |
1 |
| Other owners | 2 |