- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/121 - Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
Patent holdings for IPC class C02F 11/121
Total number of patents in this class: 219
10-year publication summary
|
5
|
6
|
13
|
16
|
27
|
34
|
38
|
47
|
29
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Georgia Tech Research Corporation | 2453 |
6 |
| Metawater Co., Ltd. | 181 |
6 |
| SunCor Energy Inc. | 838 |
5 |
| Vermeer Manufacturing Company | 615 |
5 |
| CDE Global Limited | 75 |
4 |
| Cranfield University | 90 |
4 |
| Biovac Solutions Inc. | 6 |
4 |
| Hitachi, Ltd. | 16452 |
3 |
| Alfa Laval Corporate AB | 1265 |
3 |
| Cambi Technology AS | 38 |
3 |
| Graymont Western Canada Inc. | 32 |
3 |
| Ishigaki Company Limited | 49 |
3 |
| Orege | 36 |
3 |
| China Academy of Aerospace Aerodynamics | 12 |
3 |
| Aries Gasification, LLC | 21 |
3 |
| TEC Austria GmbH | 17 |
3 |
| Phibion Pty Ltd | 7 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
| Ali-jak Holdings Pty Ltd | 4 |
2 |
| Canadian National Railway Company | 157 |
2 |
| Other owners | 149 |