- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 33/18 - Combinations of steam boilers with other apparatus
Patent holdings for IPC class F22B 33/18
Total number of patents in this class: 108
10-year publication summary
|
3
|
2
|
4
|
14
|
8
|
5
|
5
|
11
|
7
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nu Flow Technologies 2000 Inc. | 32 |
4 |
| Washington University | 1605 |
3 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 327 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8685 |
2 |
| Doosan Heavy Industries & Construction Co., Ltd. | 581 |
2 |
| Enero Inventions Inc. | 3 |
2 |
| Holtec International, Inc. | 269 |
2 |
| Korea Atomic Energy Research Institute | 433 |
2 |
| Miura Co., Ltd. | 287 |
2 |
| N-fab, Inc. | 26 |
2 |
| Parat Halvorsen AS | 7 |
2 |
| Recurrent Engineering, LLC | 7 |
2 |
| William Marsh Rice University | 1000 |
2 |
| Empirical Innovations, Inc. | 38 |
2 |
| King Abdullah City for Atomic and Renewable Energy | 20 |
2 |
| Mitsubishi Power, Ltd. | 1760 |
2 |
| Xi'an Tpri Energy Conservation Technology Co., Ltd | 21 |
2 |
| General Electric Company | 13829 |
1 |
| Siemens AG | 24525 |
1 |
| Uop LLC | 4236 |
1 |
| Other owners | 67 |