- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 5/04 - Softening water by precipitation of the hardness using phosphates
Patent holdings for IPC class C02F 5/04
Total number of patents in this class: 19
10-year publication summary
|
1
|
3
|
5
|
2
|
1
|
2
|
1
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5439 |
3 |
| Strauss Water Ltd. | 90 |
3 |
| Coway Co., Ltd. | 717 |
2 |
| Kurita Water Industries Ltd. | 1182 |
2 |
| NCH Corporation | 257 |
2 |
| Compass Minerals America Inc. | 99 |
1 |
| Kemira Oyj | 1189 |
1 |
| Veolia Water Solutions & Technologies Support | 537 |
1 |
| Bacarac Trading 114 (Proprietary) Limited | 1 |
1 |
| Kemira (Asia) Co., Ltd. | 18 |
1 |
| Manta Ecologica S.r.l. | 5 |
1 |
| Guangxi University College of Light Industry and Food Engineering | 1 |
1 |
| Other owners | 0 |