- 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: 2651
10-year publication summary
|
206
|
230
|
243
|
245
|
226
|
205
|
196
|
218
|
205
|
164
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5842 |
87 |
| King Technology, Inc. | 293 |
63 |
| Omya International AG | 780 |
36 |
| Kurita Water Industries Ltd. | 1297 |
34 |
| Suntory Holdings Limited | 2207 |
26 |
| ChemTreat, Inc. | 292 |
23 |
| Evoqua Water Technologies LLC | 928 |
18 |
| Unilever PLC | 2973 |
17 |
| Unilever N.V. | 2887 |
17 |
| BL Technologies, Inc. | 838 |
15 |
| Eagle US 2 LLC | 80 |
15 |
| Innovative Water Care, LLC | 273 |
14 |
| Championx LLC | 656 |
14 |
| Organo Corporation | 555 |
13 |
| Saudi Arabian Oil Company | 14398 |
12 |
| Halliburton Energy Services, Inc. | 21296 |
11 |
| Dow Global Technologies LLC | 11072 |
11 |
| SePRO Corporation | 164 |
11 |
| Baker Hughes Holdings LLC | 3018 |
11 |
| Nihon Trim Co., Ltd. | 115 |
10 |
| Other owners | 2193 |