- All sections
- C - Chemistrymetallurgy
- 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: 255
10-year publication summary
|
18
|
25
|
31
|
25
|
24
|
26
|
16
|
27
|
19
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| King Fahd University of Petroleum and Minerals | 1432 |
16 |
| Dexerials Corporation | 1971 |
6 |
| Soochow University | 1757 |
5 |
| Powertech Water Inc. | 26 |
5 |
| AMS Trace Metals, Inc. | 25 |
4 |
| Nanjing University | 764 |
4 |
| Firebrand Solutions Incorporated | 4 |
4 |
| Halliburton Energy Services, Inc. | 21107 |
3 |
| LG Electronics Inc. | 74373 |
3 |
| Northwestern University | 3478 |
3 |
| Höganäs AB | 303 |
3 |
| Mekorot Water Company, Ltd | 27 |
3 |
| Omya International AG | 768 |
3 |
| Sinyu Technology (Fujian) Co., Ltd. | 58 |
3 |
| Spiraltec GmbH | 12 |
3 |
| Glanris, Inc | 7 |
3 |
| Centre National de La Recherche Scientifique | 10802 |
2 |
| Massachusetts Institute of Technology | 10178 |
2 |
| Uop LLC | 4275 |
2 |
| Dow Global Technologies LLC | 10699 |
2 |
| Other owners | 176 |