- All sections
- G - Physics
- G21F - Protection against x-radiation, gamma radiation, corpuscular radiation or particle bombardmenttreating radioactively contaminated materialdecontamination arrangements therefor
- G21F 9/02 - Treating gases
Patent holdings for IPC class G21F 9/02
Total number of patents in this class: 269
10-year publication summary
|
28
|
14
|
21
|
14
|
18
|
17
|
21
|
11
|
18
|
6
|
| 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. | 278 |
21 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10750 |
12 |
| Rasa Industries, Ltd. | 21 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8582 |
9 |
| Framatome GmbH | 248 |
9 |
| Areva GmbH | 90 |
6 |
| Korea Atomic Energy Research Institute | 428 |
6 |
| Terrapower, LLC | 334 |
6 |
| GE-Hitachi Nuclear Energy Americas LLC | 415 |
5 |
| Taiheiyo Cement Corporation | 234 |
4 |
| Westinghouse Electric Company LLC | 1125 |
4 |
| Alstom Technology Ltd | 1112 |
3 |
| Ebara Corporation | 2117 |
3 |
| de Nora Permelec Ltd | 158 |
3 |
| Institut de Radioprotection et de Surete Nucleaire | 63 |
3 |
| Kimura Chemical Plants Co., Ltd. | 10 |
3 |
| Sck.-cen | 6 |
3 |
| Tokyo Institute of Technology | 1384 |
3 |
| Tosoh Corporation | 1250 |
3 |
| National Technology & Engineering Solutions of Sandia, LLC | 1884 |
3 |
| Other owners | 150 |