- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/122 - Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
Patent holdings for IPC class C02F 11/122
Total number of patents in this class: 109
10-year publication summary
|
1
|
4
|
2
|
12
|
14
|
18
|
12
|
24
|
20
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Veolia Water Solutions & Technologies Support | 547 |
6 |
| Georgia Tech Research Corporation | 2453 |
3 |
| Duke University | 2872 |
3 |
| Evoqua Water Technologies LLC | 904 |
3 |
| Graymont Western Canada Inc. | 32 |
3 |
| Dredge Spoils Reclamation, LLC | 3 |
3 |
| BCR Environmental Corporation | 28 |
2 |
| Kemira Oyj | 1167 |
2 |
| Suez International | 304 |
2 |
| Synata bio, Inc. | 74 |
2 |
| Tongji University | 440 |
2 |
| Shanghai Techase Environment Protection Co., Ltd. | 3 |
2 |
| Confident Engineering India Private Limited | 2 |
2 |
| Green Tech Corporation | 5 |
2 |
| Beijing Drainage Group Co., Ltd | 15 |
2 |
| Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd. | 19 |
2 |
| AFCO 360, LLC | 2 |
2 |
| Nanjing Shanhe Environmental Technology Co., Ltd. | 8 |
2 |
| Marmon Industrial Water LLC | 21 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Other owners | 61 |