- All sections
- G - Physics
- G21D - Nuclear power plant
- G21D 3/04 - Safety arrangements
Patent holdings for IPC class G21D 3/04
Total number of patents in this class: 282
10-year publication summary
|
30
|
16
|
24
|
15
|
28
|
19
|
18
|
16
|
20
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8715 |
29 |
| NuScale Power, LLC | 272 |
23 |
| Korea Hydro & Nuclear Power Co., Ltd. | 462 |
22 |
| Westinghouse Electric Company LLC | 1136 |
18 |
| GE-Hitachi Nuclear Energy Americas LLC | 429 |
15 |
| Mitsubishi Electric Corporation | 46093 |
14 |
| Korea Atomic Energy Research Institute | 434 |
9 |
| China Nuclear Power Engineering Co., Ltd. | 253 |
7 |
| Paragon Energy Solutions, LLC | 9 |
7 |
| China General Nuclear Power Corporation | 284 |
6 |
| Hitachi-GE Nuclear Energy, Ltd. | 282 |
6 |
| CGN Power Co., Ltd | 314 |
6 |
| BWXT Mpower, Inc. | 156 |
5 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6274 |
5 |
| Atomic Energy of Canada Limited | 128 |
4 |
| Electricite de France | 734 |
4 |
| Areva GmbH | 90 |
3 |
| KEPCO Engineering & Construction Company, Inc. | 72 |
3 |
| KEPCO Nuclear Fuel Co., Ltd. | 139 |
3 |
| Ohio State Innovation Foundation | 2132 |
3 |
| Other owners | 90 |