- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/26 - Treatment of water, waste water, or sewage by extraction
Patent holdings for IPC class C02F 1/26
Total number of patents in this class: 449
10-year publication summary
|
29
|
21
|
39
|
31
|
39
|
49
|
43
|
34
|
52
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aquafortus Technologies Limited | 33 |
9 |
| BASF SE | 19740 |
8 |
| Winner Water Services Inc. | 13 |
8 |
| 3m Innovative Properties Company | 18406 |
7 |
| Gradiant Corporation | 123 |
7 |
| Saudi Arabian Oil Company | 11322 |
7 |
| Massachusetts Institute of Technology | 9795 |
6 |
| Terralithium LLC | 52 |
6 |
| Adionics | 19 |
5 |
| Queen's University at Kingston | 517 |
5 |
| Battelle Memorial Institute | 2356 |
4 |
| BL Technologies, Inc. | 831 |
4 |
| Chemtor, LP | 53 |
4 |
| Saltworks Technologies Inc. | 87 |
4 |
| Greenblu | 5 |
4 |
| Chemische Fabrik Budenheim KG | 229 |
3 |
| Fluid Equipment Development Company, LLC | 84 |
3 |
| GreenCentre Canada | 17 |
3 |
| GreenStract, LLC | 9 |
3 |
| Helmholtz-Zentrum Dresden-Rossendorf e.V. | 122 |
3 |
| Other owners | 346 |