- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 3/30 - Aerobic and anaerobic processes
Patent holdings for IPC class C02F 3/30
Total number of patents in this class: 1535
10-year publication summary
|
110
|
126
|
101
|
150
|
114
|
157
|
116
|
130
|
97
|
35
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Veolia Water Solutions & Technologies Support | 547 |
52 |
| Evoqua Water Technologies LLC | 904 |
44 |
| Beijing University of Technology | 437 |
24 |
| BKT Co., Ltd. | 66 |
21 |
| BL Technologies, Inc. | 831 |
20 |
| Hampton Roads Sanitation District | 28 |
16 |
| D.C. Water & Sewer Authority | 28 |
15 |
| Nanjing University | 646 |
15 |
| Suez International | 304 |
14 |
| Chinese Research Academy of Environmental Sciences | 113 |
11 |
| Degremont | 103 |
11 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
11 |
| HaskoningDHV Nederland B.V. | 73 |
11 |
| The Hong Kong University of Science and Technology | 638 |
10 |
| Xylem Water Solutions U.S.A., Inc. | 34 |
10 |
| S.g.t.-sustainable Green Technologies Ltd | 12 |
10 |
| Enviromix, Inc. | 17 |
9 |
| Japan Alsi Co., Ltd. | 14 |
9 |
| Kubota Corporation | 3054 |
9 |
| Carollo Engineers, Inc. | 29 |
8 |
| Other owners | 1205 |