- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 101/20 - Heavy metals or heavy metal compounds
Patent holdings for IPC class C02F 101/20
Total number of patents in this class: 1666
10-year publication summary
|
122
|
135
|
159
|
132
|
139
|
118
|
99
|
112
|
185
|
95
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5803 |
21 |
| Evoqua Water Technologies LLC | 930 |
16 |
| Chinese Research Academy of Environmental Sciences | 134 |
15 |
| Terralithium LLC | 57 |
15 |
| Massachusetts Institute of Technology | 10254 |
14 |
| Northwestern University | 3546 |
14 |
| King Fahd University of Petroleum and Minerals | 1576 |
13 |
| Tongji University | 617 |
12 |
| ChemTreat, Inc. | 282 |
11 |
| King Abdulaziz University | 521 |
11 |
| SunCoke Technology and Development LLC | 246 |
11 |
| Imam Mohammad Ibn Saud Islamic University | 234 |
11 |
| Centre National de La Recherche Scientifique | 11026 |
10 |
| Brita LP | 98 |
10 |
| Regents of the University of Minnesota | 2791 |
10 |
| The Texas a & M University System | 1878 |
10 |
| Veolia Water Solutions & Technologies Support | 534 |
10 |
| Powertech Water Inc. | 26 |
10 |
| LG Electronics Inc. | 75818 |
9 |
| BL Technologies, Inc. | 842 |
9 |
| Other owners | 1424 |