- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 25/225 - Dihydrate process
Patent holdings for IPC class C01B 25/225
Total number of patents in this class: 6
10-year publication summary
|
1
|
0
|
3
|
0
|
0
|
0
|
0
|
0
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Prayon Technologies | 48 |
2 |
| SARIA Industries, | 3 |
1 |
| Chengdu Qianlijin Technological Innovation Co. Ltd | 7 |
1 |
| Groupe Chimique Tunisien-direction Centrale de La Recherche Scientifique | 2 |
1 |
| Keyon Process Co., Ltd | 9 |
1 |
| Other owners | 0 |