- All sections
- C - Chemistrymetallurgy
- C01G - Compounds containing metals not covered by subclasses or
- C01G 21/20 - Sulfates
Patent holdings for IPC class C01G 21/20
Total number of patents in this class: 14
10-year publication summary
|
2
|
0
|
0
|
2
|
4
|
0
|
1
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Beijing University of Technology | 479 |
3 |
| Australian Nuclear Science and Technology Organisation | 70 |
2 |
| Graymont Western US Inc. | 6 |
2 |
| Baker Hughes Incorporated | 5483 |
1 |
| Hammond Group, Inc. | 26 |
1 |
| Marsulex Environmental Technologies Corporation | 26 |
1 |
| UChicago Argonne, LLC | 890 |
1 |
| Quantum Science Ltd | 12 |
1 |
| Halo Battery Recyling Limited | 1 |
1 |
| Recyclus Group Limited | 1 |
1 |
| Other owners | 0 |