- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 25/222 - Preparation by reacting phosphate containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
Patent holdings for IPC class C01B 25/222
Total number of patents in this class: 50
10-year publication summary
|
1
|
4
|
3
|
6
|
8
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1
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6
|
4
|
2
|
1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OCP S.A. | 78 |
7 |
| Ecolab USA Inc. | 5480 |
3 |
| COATEX une société par actions simplifiée | 164 |
2 |
| Coatex S.A.S. | 227 |
2 |
| Nalco Company | 563 |
2 |
| Sichuan Lomon Titanium Co., Ltd | 9 |
2 |
| Siemens AG | 24484 |
1 |
| Ajinomoto Co., Inc. | 2295 |
1 |
| Ambiente e Nutrizione S.r.l. | 17 |
1 |
| Easymining Sweden AB | 63 |
1 |
| Ecophos | 8 |
1 |
| Evoqua Water Technologies LLC | 918 |
1 |
| Floworks International LLC | 52 |
1 |
| Heritage Research Group | 21 |
1 |
| K-technologies, Inc. | 13 |
1 |
| Kemira Oyj | 1206 |
1 |
| Kingenta Ecological Engineering Group Co., Ltd. | 8 |
1 |
| Philadelphia Mixing Solutions, Ltd. | 32 |
1 |
| POSCO | 2186 |
1 |
| Prayon Technologies | 45 |
1 |
| Other owners | 18 |