- All sections
- C - Chemistrymetallurgy
- 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: 1674
10-year publication summary
|
167
|
131
|
161
|
164
|
154
|
139
|
117
|
90
|
76
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5439 |
87 |
| Kurita Water Industries Ltd. | 1182 |
61 |
| King Technology, Inc. | 263 |
37 |
| Organo Corporation | 452 |
21 |
| Dow Global Technologies LLC | 10328 |
19 |
| Crystal Lagoons Technologies, Inc. | 99 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 30822 |
15 |
| Kemira Oyj | 1189 |
15 |
| Unilever PLC | 3234 |
14 |
| Unilever N.V. | 3135 |
14 |
| Panasonic Corporation | 20188 |
13 |
| Nutrition & Biosciences USA 1, LLC | 201 |
13 |
| General Electric Company | 13816 |
12 |
| ChemTreat, Inc. | 223 |
12 |
| DDP Specialty Electronic Materials US, LLC | 800 |
10 |
| Kuraray Co., Ltd. | 3495 |
9 |
| Innovative Water Care, LLC | 315 |
9 |
| Hindustan Unilever Limited | 1205 |
8 |
| Katayama Chemical, Inc. | 35 |
8 |
| Toray Industries, Inc. | 6867 |
7 |
| Other owners | 1271 |