- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 47/028 - Column or bed processes using columns or beds of different ion exchange materials in series with alternately arranged cationic and anionic exchangers
Patent holdings for IPC class B01J 47/028
Total number of patents in this class: 30
10-year publication summary
|
0
|
1
|
5
|
9
|
7
|
4
|
3
|
3
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Organo Corporation | 464 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 31330 |
4 |
| Kurita Water Industries Ltd. | 1193 |
3 |
| Zhejiang Huakang Pharmaceutical Co., Ltd. | 75 |
2 |
| DDP Specialty Electronic Materials US, LLC | 831 |
2 |
| Ebara Corporation | 2167 |
1 |
| Medytox Inc. | 81 |
1 |
| Mitsubishi Gas Chemical Company, Inc. | 3461 |
1 |
| Nomura Micro Science Co., Ltd. | 77 |
1 |
| Samyang Corporation | 402 |
1 |
| ThyssenKrupp AG | 3281 |
1 |
| Tohoku University | 2780 |
1 |
| Uhde Inventa-Fischer GmbH | 130 |
1 |
| Matsuda Sangyo Co., Ltd. | 28 |
1 |
| Sun Maintenance Koki Co., Ltd. | 4 |
1 |
| Agua DB Ltd | 3 |
1 |
| UAB "arionex Lt" | 2 |
1 |
| Merck Sharp & Dohme LLC | 3750 |
1 |
| Other owners | 0 |