- 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: 305
10-year publication summary
|
16
|
24
|
15
|
28
|
19
|
17
|
17
|
24
|
22
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 9139 |
29 |
| NuScale Power, LLC | 309 |
27 |
| Korea Hydro & Nuclear Power Co., Ltd. | 563 |
26 |
| Westinghouse Electric Company LLC | 1195 |
18 |
| Mitsubishi Electric Corporation | 48048 |
16 |
| GE-Hitachi Nuclear Energy Americas LLC | 454 |
15 |
| China Nuclear Power Engineering Co., Ltd. | 296 |
9 |
| Korea Atomic Energy Research Institute | 463 |
9 |
| Paragon Energy Solutions, LLC | 8 |
7 |
| China General Nuclear Power Corporation | 285 |
6 |
| CGN Power Co., Ltd | 338 |
6 |
| BWXT Mpower, Inc. | 158 |
5 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6177 |
5 |
| China Nuclear Power Design Company Ltd. (Shenzhen) | 106 |
5 |
| Atomic Energy of Canada Limited | 130 |
4 |
| Electricite de France | 755 |
4 |
| Hitachi-GE Nuclear Energy, Ltd. | 132 |
4 |
| Areva GmbH | 90 |
3 |
| KEPCO Engineering & Construction Company, Inc. | 79 |
3 |
| KEPCO Nuclear Fuel Co., Ltd. | 148 |
3 |
| Other owners | 101 |