- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 3/02 - Other methods of steam generation; Steam boilers not provided for in other groups of this subclass involving the use of working media other than water
Patent holdings for IPC class F22B 3/02
Total number of patents in this class: 44
10-year publication summary
|
2
|
1
|
5
|
7
|
10
|
9
|
7
|
5
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| XDI Holdings, LLC | 68 |
6 |
| Clean Planet Inc. | 61 |
3 |
| Miura Co., Ltd. | 287 |
3 |
| Smiths Detection-Watford Limited | 187 |
3 |
| Uop LLC | 4083 |
2 |
| Fuji Electric Co., Ltd. | 4750 |
2 |
| GE-Hitachi Nuclear Energy Americas LLC | 406 |
2 |
| IHI Corporation | 3268 |
2 |
| Kore Infrastructure | 4 |
2 |
| Canon Inc. | 36841 |
1 |
| Hitachi, Ltd. | 16452 |
1 |
| Balcke-Durr GmbH | 18 |
1 |
| Diehl Aerospace GmbH | 146 |
1 |
| HORIBA STEC, Co., Ltd. | 302 |
1 |
| HS Marston Aerospace Ltd. | 37 |
1 |
| Metawater Co., Ltd. | 181 |
1 |
| Mitsubishi Hitachi Power Systems Europe GmbH | 40 |
1 |
| RASIRC, Inc. | 47 |
1 |
| Redline Detection, LLC | 33 |
1 |
| Saudi Arabian Oil Company | 11322 |
1 |
| Other owners | 8 |