- All sections
- C - Chemistrymetallurgy
- 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: 234
10-year publication summary
|
14
|
13
|
21
|
12
|
19
|
15
|
11
|
10
|
9
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gradiant Corporation | 147 |
16 |
| Ecolab USA Inc. | 5803 |
14 |
| Veolia Water Solutions & Technologies Support | 534 |
13 |
| Saudi Arabian Oil Company | 14248 |
7 |
| BL Technologies, Inc. | 842 |
5 |
| Clean Chemistry, Inc. | 40 |
5 |
| Terralithium LLC | 57 |
5 |
| Panasonic Housing Solutions Co.,Ltd. | 173 |
5 |
| Chevron U.S.A. Inc. | 4136 |
4 |
| Commonwealth Scientific and Industrial Research Organisation | 1652 |
4 |
| ConocoPhillips Company | 1709 |
4 |
| General Electric Company | 13910 |
3 |
| Aramco Services Company | 4196 |
3 |
| Cargill, Incorporated | 2956 |
3 |
| ChemTreat, Inc. | 282 |
3 |
| Horiba Advanced Techno, Co., Ltd. | 121 |
3 |
| Lake Country Fracwater Specialists, LLC | 11 |
3 |
| BASF SE | 21308 |
2 |
| The Regents of the University of California | 20778 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
2 |
| Other owners | 128 |