- All sections
- G - Physics
- G21F - Protection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment; treating radioactively contaminated material; decontamination arrangements therefor
- G21F 9/02 - Treating gases
Patent holdings for IPC class G21F 9/02
Total number of patents in this class: 258
10-year publication summary
20
|
28
|
14
|
21
|
14
|
18
|
16
|
21
|
11
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hitachi-GE Nuclear Energy, Ltd. | 261 |
20 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
11 |
Rasa Industries, Ltd. | 19 |
10 |
Framatome GmbH | 246 |
10 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
9 |
Areva GmbH | 90 |
6 |
GE-Hitachi Nuclear Energy Americas LLC | 406 |
5 |
Terrapower, LLC | 315 |
5 |
Korea Atomic Energy Research Institute | 418 |
4 |
Taiheiyo Cement Corporation | 237 |
4 |
Westinghouse Electric Company LLC | 1087 |
4 |
Alstom Technology Ltd | 1196 |
3 |
Ebara Corporation | 1951 |
3 |
de Nora Permelec Ltd | 152 |
3 |
Institut de Radioprotection et de Surete Nucleaire | 63 |
3 |
Kimura Chemical Plants Co., Ltd. | 10 |
3 |
Tokyo Institute of Technology | 1367 |
3 |
Tosoh Corporation | 1127 |
3 |
National Technology & Engineering Solutions of Sandia, LLC | 1851 |
3 |
Wakaida Engineering Inc. | 5 |
3 |
Other owners | 143 |