- All sections
- C - Chemistrymetallurgy
- 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: 416
10-year publication summary
|
21
|
23
|
31
|
32
|
40
|
33
|
32
|
27
|
17
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evoqua Water Technologies LLC | 930 |
9 |
| Tongji University | 631 |
6 |
| Shimose Microbes Laboratory Corporation | 40 |
6 |
| Carbonadeusa, Corp. | 5 |
5 |
| Sumitomo Chemical Company, Limited | 8992 |
4 |
| Chinese Research Academy of Environmental Sciences | 136 |
4 |
| Enviromix, Inc. | 20 |
4 |
| Hampton Roads Sanitation District | 42 |
4 |
| Veolia Water Solutions & Technologies Support | 533 |
4 |
| Kataoka Bio Laboratory Co., Ltd. | 10 |
4 |
| BCR Environmental Corporation | 26 |
3 |
| Beijing University of Technology | 522 |
3 |
| BKT Co., Ltd. | 69 |
3 |
| D.C. Water & Sewer Authority | 25 |
3 |
| E's Inc. | 15 |
3 |
| GSR Solutions LLC | 8 |
3 |
| Ishigaki Company Limited | 45 |
3 |
| Kubota Corporation | 4483 |
3 |
| Microbial Discovery Group, LLC | 79 |
3 |
| RDP Technologies, Inc. | 33 |
3 |
| Other owners | 336 |