- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/70 - Treatment of water, waste water, or sewage by reduction
Patent holdings for IPC class C02F 1/70
Total number of patents in this class: 680
10-year publication summary
|
48
|
51
|
48
|
45
|
60
|
45
|
51
|
47
|
43
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kurita Water Industries Ltd. | 1204 |
22 |
| Evoqua Water Technologies LLC | 919 |
19 |
| Ecolab USA Inc. | 5519 |
18 |
| Organo Corporation | 483 |
18 |
| The Texas a & M University System | 1728 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 8787 |
7 |
| ChemTreat, Inc. | 235 |
7 |
| Earth Renaissance Technologies, LLC | 23 |
7 |
| Nanjing University | 738 |
7 |
| The Regents of the University of California | 20087 |
6 |
| Toray Industries, Inc. | 6978 |
6 |
| Kemira Oyj | 1212 |
6 |
| Nalco Company | 571 |
6 |
| Nomura Micro Science Co., Ltd. | 80 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 31882 |
5 |
| Chinese Research Academy of Environmental Sciences | 128 |
5 |
| The Chugoku Electric Power Co., Inc. | 513 |
5 |
| Höganäs AB | 308 |
5 |
| OxyTec LLC | 10 |
5 |
| Remediation Products, Inc. | 24 |
5 |
| Other owners | 504 |