- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam 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: 97
10-year publication summary
|
4
|
3
|
2
|
4
|
14
|
7
|
5
|
5
|
11
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nu Flow Technologies 2000 Inc. | 33 |
4 |
| Washington University | 1473 |
3 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 244 |
3 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
2 |
| Enero Inventions Inc. | 3 |
2 |
| Holtec International, Inc. | 258 |
2 |
| Korea Atomic Energy Research Institute | 418 |
2 |
| Miura Co., Ltd. | 287 |
2 |
| Parat Halvorsen AS | 7 |
2 |
| Recurrent Engineering, LLC | 10 |
2 |
| William Marsh Rice University | 937 |
2 |
| King Abdullah City for Atomic and Renewable Energy | 20 |
2 |
| Mitsubishi Power, Ltd. | 1680 |
2 |
| Xi'an Tpri Energy Conservation Technology Co., Ltd | 18 |
2 |
| General Electric Company | 18133 |
1 |
| Siemens AG | 24990 |
1 |
| Uop LLC | 4083 |
1 |
| Chevron U.S.A. Inc. | 3774 |
1 |
| Tsinghua University | 5426 |
1 |
| Air Products and Chemicals, Inc. | 1448 |
1 |
| Other owners | 59 |