- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 17/56 - SeparationPurification
Patent holdings for IPC class C01B 17/56
Total number of patents in this class: 22
10-year publication summary
|
0
|
2
|
6
|
1
|
2
|
1
|
2
|
0
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Jiangnan Environmental Protection Group Inc. | 57 |
5 |
| Outotec (Finland) Oy | 458 |
2 |
| Saudi Arabian Oil Company | 13948 |
2 |
| Showa Denko K.K. | 2095 |
1 |
| Korea Institute of Science and Technology | 2202 |
1 |
| Aramco Services Company | 4162 |
1 |
| Chemetics Inc. | 69 |
1 |
| Iogen Corporation | 154 |
1 |
| Membrane Technology and Research, Inc. | 91 |
1 |
| Sumitomo Seika Chemicals Co., Ltd. | 1041 |
1 |
| ThyssenKrupp AG | 3464 |
1 |
| ThyssenKrupp Industrial Solutions AG | 630 |
1 |
| Siemens Energy Global GmbH & Co. KG | 3267 |
1 |
| Topsoe A/S | 1012 |
1 |
| Resonac Corporation | 3247 |
1 |
| Peregrine Hydrogen Inc. | 17 |
1 |
| Other owners | 0 |