- 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: 2448
10-year publication summary
|
210
|
205
|
228
|
241
|
243
|
226
|
201
|
186
|
199
|
127
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5480 |
81 |
| King Technology, Inc. | 262 |
59 |
| Omya International AG | 774 |
36 |
| Kurita Water Industries Ltd. | 1194 |
29 |
| Suntory Holdings Limited | 2034 |
26 |
| Unilever PLC | 3195 |
19 |
| Unilever N.V. | 3103 |
19 |
| Innovative Water Care, LLC | 310 |
18 |
| ChemTreat, Inc. | 226 |
17 |
| Evoqua Water Technologies LLC | 918 |
15 |
| Eagle US 2 LLC | 89 |
15 |
| Halliburton Energy Services, Inc. | 20891 |
11 |
| Dow Global Technologies LLC | 10363 |
11 |
| BL Technologies, Inc. | 834 |
11 |
| Baker Hughes Holdings LLC | 3007 |
11 |
| Cleanwater1, Inc. | 33 |
11 |
| Hindustan Unilever Limited | 1176 |
10 |
| Nihon Trim Co., Ltd. | 115 |
10 |
| Conopco, Inc. | 5023 |
9 |
| Panasonic Electric Works Co., Ltd. | 721 |
9 |
| Other owners | 2021 |