- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/121 - Treatment of sludgeDevices 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: 246
10-year publication summary
|
6
|
13
|
16
|
28
|
35
|
39
|
48
|
31
|
30
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Georgia Tech Research Corporation | 2733 |
6 |
| Metawater Co., Ltd. | 194 |
6 |
| Vermeer Manufacturing Company | 634 |
6 |
| CDE Global Limited | 77 |
4 |
| Cranfield University | 86 |
4 |
| SunCor Energy Inc. | 735 |
4 |
| Biovac Solutions Inc. | 6 |
4 |
| Phibion Pty Ltd | 8 |
4 |
| Hitachi, Ltd. | 15484 |
3 |
| Alfa Laval Corporate AB | 1311 |
3 |
| Cambi Technology AS | 40 |
3 |
| Graymont Western Canada Inc. | 43 |
3 |
| Ishigaki Company Limited | 47 |
3 |
| Orege | 37 |
3 |
| Process Wastewater Technologies, LLC | 12 |
3 |
| China Academy of Aerospace Aerodynamics | 21 |
3 |
| Aries Gasification, LLC | 19 |
3 |
| TEC Austria GmbH | 18 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10923 |
2 |
| Ali-jak Holdings Pty Ltd | 3 |
2 |
| Other owners | 174 |