- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
Patent holdings for IPC class C02F 11/04
Total number of patents in this class: 1154
10-year publication summary
|
75
|
68
|
77
|
89
|
97
|
67
|
88
|
82
|
63
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Anaergia Inc. | 106 |
54 |
| Suez International | 365 |
32 |
| Tongji University | 593 |
22 |
| Veolia Water Solutions & Technologies Support | 532 |
21 |
| Cambi Technology AS | 42 |
15 |
| Evoqua Water Technologies LLC | 930 |
13 |
| Iogen Corporation | 157 |
13 |
| Kubota Corporation | 4278 |
13 |
| Swing Corporation | 30 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 9049 |
9 |
| Metawater Co., Ltd. | 201 |
9 |
| S.g.t.-sustainable Green Technologies Ltd | 12 |
9 |
| BKT Co., Ltd. | 66 |
8 |
| Emerson Electric Co. | 523 |
8 |
| Renescience A/S | 34 |
8 |
| DVO Licensing, Inc. | 13 |
7 |
| Nanyang Technological University | 2181 |
7 |
| Suez Groupe | 168 |
7 |
| SEaB Power Limited | 12 |
7 |
| Degremont | 78 |
6 |
| Other owners | 876 |