- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
Patent holdings for IPC class C02F 1/68
Total number of patents in this class: 2562
10-year publication summary
|
193
|
217
|
222
|
222
|
211
|
192
|
182
|
196
|
190
|
61
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5725 |
85 |
| King Technology, Inc. | 293 |
64 |
| Omya International AG | 771 |
36 |
| Kurita Water Industries Ltd. | 1259 |
33 |
| Suntory Holdings Limited | 2094 |
25 |
| ChemTreat, Inc. | 264 |
21 |
| Unilever PLC | 3048 |
18 |
| Unilever N.V. | 2957 |
18 |
| Evoqua Water Technologies LLC | 930 |
18 |
| Eagle US 2 LLC | 81 |
15 |
| Innovative Water Care, LLC | 288 |
15 |
| BL Technologies, Inc. | 837 |
13 |
| Championx LLC | 606 |
12 |
| Halliburton Energy Services, Inc. | 21194 |
11 |
| Dow Global Technologies LLC | 10770 |
11 |
| Baker Hughes Holdings LLC | 2985 |
11 |
| Cleanwater1, Inc. | 39 |
11 |
| Nihon Trim Co., Ltd. | 114 |
10 |
| Organo Corporation | 535 |
10 |
| Saudi Arabian Oil Company | 13949 |
10 |
| Other owners | 2115 |