- All sections
- G - Physics
- G21C - Nuclear reactors
- G21C 9/004 - Pressure suppression
Patent holdings for IPC class G21C 9/004
Total number of patents in this class: 126
10-year publication summary
|
13
|
10
|
10
|
9
|
6
|
3
|
9
|
4
|
6
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi-GE Nuclear Energy, Ltd. | 279 |
15 |
| GE-Hitachi Nuclear Energy Americas LLC | 417 |
14 |
| Mitsubishi Heavy Industries, Ltd. | 8641 |
7 |
| SMR Inventec, LLC | 48 |
7 |
| Korea Atomic Energy Research Institute | 431 |
6 |
| Framatome GmbH | 249 |
6 |
| Rolls-Royce SMR Limited | 53 |
6 |
| Toshiba Corporation | 12273 |
5 |
| Areva GmbH | 90 |
5 |
| BWXT Mpower, Inc. | 156 |
5 |
| Westinghouse Electric Company LLC | 1133 |
5 |
| Joint-Stock Company Scientific Research and Design Institute for Energy Technologies Atomproekt | 26 |
4 |
| DCNS | 97 |
3 |
| DCNS SA | 92 |
3 |
| Rasa Industries, Ltd. | 21 |
3 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6274 |
3 |
| AREVA Inc. | 30 |
2 |
| Babcock & Wilcox Mpower, Inc. | 55 |
2 |
| Korea Hydro & Nuclear Power Co., Ltd. | 443 |
2 |
| NuScale Power, LLC | 262 |
2 |
| Other owners | 21 |