- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 3/32 - Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Patent holdings for IPC class C02F 3/32
Total number of patents in this class: 705
10-year publication summary
|
56
|
63
|
51
|
70
|
57
|
74
|
74
|
63
|
43
|
19
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Chinese Research Academy of Environmental Sciences | 113 |
15 |
| Kurita Water Industries Ltd. | 1110 |
12 |
| Shandong University | 886 |
10 |
| The University of Akron | 674 |
9 |
| Centre National de La Recherche Scientifique | 9632 |
8 |
| University of Central Florida Research Foundation, Inc. | 1098 |
7 |
| Chongqing University | 221 |
6 |
| Contech Engineered Solutions LLC | 208 |
6 |
| Hohai University | 188 |
6 |
| Fudan University | 585 |
5 |
| Modular Wetland Systems, Inc. | 13 |
5 |
| Oldcastle Precast, Inc. | 55 |
5 |
| Universite Montpellier 2 Sciences et Techniques | 158 |
5 |
| University of Massachusetts | 2130 |
5 |
| Gross-wen Technologies, Inc. | 15 |
5 |
| BKT Co., Ltd. | 66 |
4 |
| Carbon Sink Inc. | 32 |
4 |
| The Chugoku Electric Power Co., Inc. | 498 |
4 |
| Colorado State University Research Foundation | 675 |
4 |
| GSR Solutions LLC | 8 |
4 |
| Other owners | 576 |