- 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: 1847
10-year publication summary
|
118
|
150
|
166
|
171
|
161
|
196
|
173
|
143
|
135
|
47
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NCH Corporation | 266 |
20 |
| Veolia Water Solutions & Technologies Support | 547 |
19 |
| Chinese Research Academy of Environmental Sciences | 113 |
17 |
| Kubota Corporation | 3054 |
17 |
| Kurita Water Industries Ltd. | 1110 |
16 |
| Novozymes A/S | 3314 |
15 |
| Novozymes Biologicals, Inc. | 52 |
12 |
| Indian Oil Corporation Limited | 329 |
12 |
| BiOWiSH Technologies, Inc. | 25 |
11 |
| The Fynder Group, Inc. | 98 |
11 |
| General Electric Company | 18133 |
10 |
| Centre National de La Recherche Scientifique | 9632 |
10 |
| Metawater Co., Ltd. | 181 |
10 |
| Nanjing University | 646 |
10 |
| Kaneka Corporation | 4445 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
8 |
| Beijing University of Technology | 437 |
8 |
| BKT Co., Ltd. | 66 |
8 |
| Cornell University | 3036 |
8 |
| Japan Alsi Co., Ltd. | 14 |
8 |
| Other owners | 1608 |