- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/50 - Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
Patent holdings for IPC class C02F 1/50
Total number of patents in this class: 1698
10-year publication summary
|
134
|
167
|
131
|
161
|
164
|
154
|
132
|
106
|
88
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5190 |
80 |
| Kurita Water Industries Ltd. | 1110 |
60 |
| King Technology, Inc. | 241 |
36 |
| Organo Corporation | 394 |
21 |
| Dow Global Technologies LLC | 10147 |
19 |
| Crystal Lagoons Technologies, Inc. | 90 |
18 |
| Nutrition & Biosciences USA 1, LLC | 186 |
16 |
| Unilever PLC | 3540 |
15 |
| Unilever N.V. | 3440 |
15 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
15 |
| Panasonic Corporation | 20786 |
13 |
| General Electric Company | 18133 |
12 |
| Innovative Water Care, LLC | 324 |
12 |
| ChemTreat, Inc. | 198 |
11 |
| Kemira Oyj | 1167 |
11 |
| Katayama Chemical, Inc. | 37 |
10 |
| Kuraray Co., Ltd. | 3392 |
10 |
| DDP Specialty Electronic Materials US, LLC | 442 |
10 |
| Italmatch Chemicals GB Limited | 64 |
9 |
| Hindustan Unilever Limited | 1281 |
8 |
| Other owners | 1297 |