- 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
|
10
|
10
|
9
|
4
|
| 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. | 5725 |
14 |
| Veolia Water Solutions & Technologies Support | 532 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 33507 |
7 |
| Saudi Arabian Oil Company | 13949 |
7 |
| BL Technologies, Inc. | 837 |
5 |
| Clean Chemistry, Inc. | 40 |
5 |
| Chevron U.S.A. Inc. | 4081 |
4 |
| Commonwealth Scientific and Industrial Research Organisation | 1658 |
4 |
| ConocoPhillips Company | 1701 |
4 |
| Terralithium LLC | 56 |
4 |
| General Electric Company | 13831 |
3 |
| Aramco Services Company | 4162 |
3 |
| Cargill, Incorporated | 2943 |
3 |
| ChemTreat, Inc. | 264 |
3 |
| Horiba Advanced Techno, Co., Ltd. | 119 |
3 |
| BASF SE | 21113 |
2 |
| The Regents of the University of California | 20534 |
2 |
| Fuji Electric Co., Ltd. | 5390 |
2 |
| Arizona Board of Regents on behalf of Arizona State University | 2845 |
2 |
| Other owners | 128 |