- All sections
- G - Physics
- G21F - Protection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment; treating radioactively contaminated material; decontamination arrangements therefor
- G21F 9/12 - Processing by ion-exchange
Patent holdings for IPC class G21F 9/12
Total number of patents in this class: 517
10-year publication summary
|
58
|
55
|
54
|
50
|
28
|
30
|
31
|
23
|
11
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Chemical Industrial Co., Ltd. | 271 |
26 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10694 |
25 |
| Ebara Corporation | 2080 |
15 |
| Hitachi-GE Nuclear Energy, Ltd. | 272 |
13 |
| Korea Atomic Energy Research Institute | 426 |
13 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 360 |
12 |
| Ukima Chemicals & Color Mfg. Co., Ltd. | 28 |
12 |
| Veolia Nuclear Solutions Inc. | 54 |
10 |
| Framatome GmbH | 251 |
9 |
| Centre National de La Recherche Scientifique | 10091 |
8 |
| Titan Kogyo Kabushiki Kaisha | 29 |
8 |
| Battelle Savannah River Alliance, LLC | 214 |
8 |
| Tsinghua University | 5700 |
7 |
| Tosoh Corporation | 1216 |
7 |
| Avantech, LLC | 14 |
7 |
| Perma-Fix Environmental Services, Inc. | 17 |
6 |
| Universite de Montpellier | 960 |
6 |
| Kurita Water Industries Ltd. | 1150 |
5 |
| National Technology & Engineering Solutions of Sandia, LLC | 1881 |
5 |
| P&T Global Solutions, LLC | 19 |
5 |
| Other owners | 310 |