- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/127 - Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
Patent holdings for IPC class C02F 11/127
Total number of patents in this class: 129
10-year publication summary
|
1
|
4
|
8
|
9
|
13
|
21
|
22
|
25
|
19
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dow Global Technologies LLC | 10147 |
7 |
| Veolia Water Solutions & Technologies Support | 547 |
7 |
| Graymont Western Canada Inc. | 32 |
5 |
| BCR Environmental Corporation | 28 |
4 |
| Tongji University | 440 |
4 |
| Heritage Research Group, LLC | 48 |
3 |
| LG Chem, Ltd. | 17205 |
2 |
| BKT Co., Ltd. | 66 |
2 |
| Cambi Technology AS | 38 |
2 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
2 |
| HaskoningDHV Nederland B.V. | 73 |
2 |
| Kemira Oyj | 1167 |
2 |
| RDP Technologies, Inc. | 34 |
2 |
| CDEnviro Limited | 7 |
2 |
| Southeastern Environmental Services, LLC | 2 |
2 |
| Ragn-sells Treatment and Detox AB | 2 |
2 |
| North China Municipal Engineering Design & Research Institute Co., Ltd. | 8 |
2 |
| Somerset International Finance Designated Activity Company | 2 |
2 |
| BASF SE | 19740 |
1 |
| Apex Engineering Inc. | 7 |
1 |
| Other owners | 73 |