- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/04 - Anaerobic treatment; Production of methane by such processes
Patent holdings for IPC class C02F 11/04
Total number of patents in this class: 1068
10-year publication summary
|
83
|
97
|
75
|
68
|
77
|
88
|
94
|
64
|
69
|
31
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Anaergia Inc. | 111 |
56 |
| Veolia Water Solutions & Technologies Support | 547 |
21 |
| Tongji University | 440 |
17 |
| Suez International | 304 |
15 |
| Cambi Technology AS | 38 |
14 |
| Kubota Corporation | 3054 |
11 |
| Renescience A/S | 39 |
11 |
| Evoqua Water Technologies LLC | 904 |
10 |
| Iogen Corporation | 136 |
10 |
| Swing Corporation | 30 |
10 |
| S.g.t.-sustainable Green Technologies Ltd | 12 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
8 |
| BKT Co., Ltd. | 66 |
8 |
| Emerson Electric Co. | 601 |
8 |
| Metawater Co., Ltd. | 181 |
8 |
| Degremont | 103 |
7 |
| Suez Groupe | 171 |
7 |
| SEaB Power Limited | 14 |
7 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
6 |
| DVO Licensing, Inc. | 12 |
6 |
| Other owners | 818 |