- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 25/231 - Dihydrate-hemihydrate process
Patent holdings for IPC class C01B 25/231
Total number of patents in this class: 11
10-year publication summary
|
2
|
1
|
1
|
0
|
0
|
0
|
0
|
0
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0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Prayon Technologies | 48 |
8 |
| Kingenta Norsterra Chemical Co., Ltd. | 8 |
3 |
| Other owners | 0 |