- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 3/34 - Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Patent holdings for IPC class C02F 3/34
Total number of patents in this class: 1929
10-year publication summary
|
150
|
166
|
171
|
162
|
195
|
173
|
148
|
137
|
149
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kubota Corporation | 3495 |
19 |
| NCH Corporation | 258 |
19 |
| Veolia Water Solutions & Technologies Support | 543 |
19 |
| Chinese Research Academy of Environmental Sciences | 121 |
18 |
| Novozymes A/S | 3307 |
15 |
| Kurita Water Industries Ltd. | 1156 |
15 |
| The Fynder Group, Inc. | 110 |
14 |
| Novozymes Biologicals, Inc. | 50 |
12 |
| Indian Oil Corporation Limited | 332 |
12 |
| Centre National de La Recherche Scientifique | 10102 |
11 |
| General Electric Company | 17789 |
10 |
| BiOWiSH Technologies, Inc. | 26 |
10 |
| Metawater Co., Ltd. | 187 |
10 |
| Paques I.P. B.V. | 68 |
10 |
| Locus Solutions IPCo, LLC | 263 |
10 |
| The Trustees of Columbia University in the City of New York | 3524 |
9 |
| Kaneka Corporation | 4498 |
9 |
| Nanjing University | 692 |
9 |
| Organo Corporation | 438 |
9 |
| Remediation Products, Inc. | 24 |
9 |
| Other owners | 1680 |