- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 3/00 - Biological treatment of water, waste water, or sewage
Patent holdings for IPC class C02F 3/00
Total number of patents in this class: 1811
10-year publication summary
|
142
|
153
|
140
|
136
|
147
|
140
|
124
|
123
|
97
|
31
|
| 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 |
63 |
| Veolia Water Solutions & Technologies Support | 547 |
30 |
| BL Technologies, Inc. | 831 |
24 |
| Suez International | 304 |
16 |
| Beijing University of Technology | 437 |
14 |
| Degremont | 103 |
13 |
| Kubota Corporation | 3054 |
13 |
| Ovivo Inc. | 137 |
13 |
| BKT Co., Ltd. | 66 |
12 |
| Hampton Roads Sanitation District | 28 |
12 |
| D.C. Water & Sewer Authority | 28 |
11 |
| Nanjing University | 646 |
11 |
| Bionest Technologies Inc. | 26 |
10 |
| SAM Houston State University | 38 |
10 |
| Organo Corporation | 394 |
9 |
| Siemens Water Technologies Corp. | 90 |
9 |
| AntiCline Disposal, LLC | 9 |
8 |
| Cambrian Innovation Inc. | 29 |
8 |
| Liberty Evans, LLC | 11 |
8 |
| Metawater Co., Ltd. | 181 |
8 |
| Other owners | 1509 |