- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 3/00 - Other methods of steam generationSteam boilers not provided for in other groups of this subclass
Patent holdings for IPC class F22B 3/00
Total number of patents in this class: 69
10-year publication summary
|
5
|
5
|
7
|
4
|
3
|
6
|
3
|
1
|
3
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Miura Co., Ltd. | 286 |
6 |
| Google LLC | 42196 |
4 |
| Saudi Arabian Oil Company | 13155 |
3 |
| Taizhou Dajiang Industry Co., Ltd. | 12 |
3 |
| Oqab Dietrich Induction Inc. | 60 |
3 |
| LG Chem, Ltd. | 17632 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8715 |
2 |
| Fuji Electric Co., Ltd. | 5140 |
2 |
| Global Oil EOR Systems, Ltd. | 4 |
2 |
| IHI Corporation | 3426 |
2 |
| Korea Institute of Energy Research | 852 |
2 |
| XDI Holdings, LLC | 38 |
2 |
| Bioleap, Inc. | 9 |
2 |
| Taiyo energy kenkyusho inc. | 3 |
2 |
| Hitachi, Ltd. | 15484 |
1 |
| Alstom Technology Ltd | 1108 |
1 |
| Kao Corporation | 4964 |
1 |
| Bastian Family Holdings, Inc. | 4 |
1 |
| Big Sun Energy Technology Inc. | 12 |
1 |
| BWXT Foreign Holdings, LLC | 3 |
1 |
| Other owners | 26 |