- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/02 - Biological treatment
Patent holdings for IPC class C02F 11/02
Total number of patents in this class: 392
10-year publication summary
|
26
|
33
|
21
|
23
|
30
|
32
|
38
|
28
|
30
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evoqua Water Technologies LLC | 904 |
8 |
| Ovivo Inc. | 137 |
6 |
| Sumitomo Chemical Company, Limited | 8808 |
4 |
| Enviromix, Inc. | 17 |
4 |
| Kurita Water Industries Ltd. | 1110 |
4 |
| The University of Akron | 674 |
4 |
| Shimose Microbes Laboratory Corporation | 24 |
4 |
| Kataoka Bio Laboratory Co., Ltd. | 8 |
4 |
| Anaergia Inc. | 111 |
3 |
| BCR Environmental Corporation | 28 |
3 |
| Beijing University of Technology | 437 |
3 |
| BKT Co., Ltd. | 66 |
3 |
| Chinese Research Academy of Environmental Sciences | 113 |
3 |
| D.C. Water & Sewer Authority | 28 |
3 |
| E's Inc. | 13 |
3 |
| GSR Solutions LLC | 8 |
3 |
| Ishigaki Company Limited | 49 |
3 |
| Menicon Co., Ltd. | 412 |
3 |
| Microbial Discovery Group, LLC | 57 |
3 |
| Stichting Wetsus Centre of Excellence for Sustainable Water Technology | 39 |
3 |
| Other owners | 318 |