- All sections
- C - Chemistrymetallurgy
- 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: 1832
10-year publication summary
|
153
|
140
|
136
|
150
|
144
|
124
|
128
|
108
|
121
|
51
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evoqua Water Technologies LLC | 914 |
61 |
| Veolia Water Solutions & Technologies Support | 536 |
29 |
| BL Technologies, Inc. | 831 |
27 |
| Suez International | 333 |
19 |
| Beijing University of Technology | 491 |
17 |
| Kubota Corporation | 3721 |
16 |
| Degremont | 91 |
13 |
| Ovivo Inc. | 155 |
13 |
| Hampton Roads Sanitation District | 33 |
12 |
| Bionest Technologies Inc. | 28 |
11 |
| D.C. Water & Sewer Authority | 28 |
11 |
| BKT Co., Ltd. | 67 |
10 |
| Cambrian Innovation Inc. | 28 |
10 |
| Nanjing University | 719 |
10 |
| Organo Corporation | 456 |
10 |
| SAM Houston State University | 42 |
10 |
| Enviromix, Inc. | 19 |
9 |
| Siemens Water Technologies Corp. | 78 |
9 |
| Aquacycl, Inc. | 18 |
9 |
| AntiCline Disposal, LLC | 9 |
8 |
| Other owners | 1518 |