- All sections
- G - Physics
- G21C - Nuclear reactors
- G21C 19/40 - Arrangements for preventing occurrence of critical conditions, e.g. during storage
Patent holdings for IPC class G21C 19/40
Total number of patents in this class: 79
10-year publication summary
|
8
|
14
|
8
|
7
|
3
|
5
|
9
|
4
|
6
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Holtec International, Inc. | 258 |
23 |
| GE-Hitachi Nuclear Energy Americas LLC | 406 |
6 |
| NuScale Power, LLC | 236 |
6 |
| Westinghouse Electric Company LLC | 1087 |
5 |
| TN International | 76 |
4 |
| Areva GmbH | 90 |
3 |
| Curtiss-Wright Flow Control Corporation | 50 |
2 |
| Korea Atomic Energy Research Institute | 418 |
2 |
| NAC International, Inc. | 43 |
2 |
| The Research Foundation for The State University of New York | 1468 |
2 |
| TN Americas LLC | 21 |
2 |
| Framatome GmbH | 246 |
2 |
| Rolls-Royce SMR Limited | 49 |
2 |
| 3m Innovative Properties Company | 18406 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Toshiba Corporation | 12017 |
1 |
| Rolls-Royce PLC | 2944 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
| Tsinghua University | 5426 |
1 |
| Belgonucleaire SA | 3 |
1 |
| Other owners | 11 |