- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 5/02 - Softening water by precipitation of the hardness
Patent holdings for IPC class C02F 5/02
Total number of patents in this class: 223
10-year publication summary
|
40
|
14
|
13
|
21
|
12
|
18
|
15
|
8
|
9
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gradiant Corporation | 129 |
16 |
| Ecolab USA Inc. | 5341 |
14 |
| Veolia Water Solutions & Technologies Support | 543 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
6 |
| BL Technologies, Inc. | 849 |
5 |
| Clean Chemistry, Inc. | 36 |
5 |
| Chevron U.S.A. Inc. | 3856 |
4 |
| ConocoPhillips Company | 1679 |
4 |
| Saudi Arabian Oil Company | 12446 |
4 |
| Terralithium LLC | 55 |
4 |
| General Electric Company | 17789 |
3 |
| Cargill, Incorporated | 2894 |
3 |
| ChemTreat, Inc. | 207 |
3 |
| Commonwealth Scientific and Industrial Research Organisation | 1675 |
3 |
| Horiba Advanced Techno, Co., Ltd. | 106 |
3 |
| BASF SE | 20432 |
2 |
| The Regents of the University of California | 19517 |
2 |
| Fuji Electric Co., Ltd. | 4980 |
2 |
| Arizona Board of Regents on behalf of Arizona State University | 2464 |
2 |
| Bio-lab, Inc. | 154 |
2 |
| Other owners | 122 |