- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 101/22 - Chromium or chromium compounds, e.g. chromates
Patent holdings for IPC class C02F 101/22
Total number of patents in this class: 203
10-year publication summary
|
17
|
23
|
18
|
24
|
31
|
24
|
24
|
16
|
13
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dexerials Corporation | 1826 |
6 |
| King Fahd University of Petroleum and Minerals | 779 |
6 |
| Höganäs AB | 337 |
4 |
| Nanjing University | 646 |
4 |
| Soochow University | 1605 |
4 |
| Halliburton Energy Services, Inc. | 20165 |
3 |
| Northwestern University | 3112 |
3 |
| Mekorot Water Company, Ltd | 24 |
3 |
| Omya International AG | 816 |
3 |
| Sinyu Technology (Fujian) Co., Ltd. | 40 |
3 |
| Powertech Water Inc. | 18 |
3 |
| LG Electronics Inc. | 69257 |
2 |
| Uop LLC | 4083 |
2 |
| Dow Global Technologies LLC | 10147 |
2 |
| The Curators of the University of Missouri | 965 |
2 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1434 |
2 |
| Ionex SG Limited | 4 |
2 |
| King Saud University | 332 |
2 |
| Metafix Inc. | 6 |
2 |
| Oxford University Innovation Limited | 1421 |
2 |
| Other owners | 143 |