- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/64 - Heavy metal compounds of iron or manganese
Patent holdings for IPC class C02F 1/64
Total number of patents in this class: 113
10-year publication summary
|
2
|
9
|
4
|
7
|
6
|
6
|
6
|
9
|
12
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1936 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 33462 |
8 |
| Kurita Water Industries Ltd. | 1258 |
6 |
| Vulcan Energie Ressourcen GmbH | 11 |
4 |
| Dexerials Corporation | 1994 |
3 |
| Terralithium LLC | 56 |
3 |
| Centre National de La Recherche Scientifique | 10870 |
2 |
| BYD Company Limited | 6196 |
2 |
| ConocoPhillips Company | 1700 |
2 |
| JFE Steel Corporation | 7339 |
2 |
| Korea Zinc Co., Ltd. | 155 |
2 |
| Superior Fresh LLC | 7 |
2 |
| Temple University of the Commonwealth System of Higher Education | 636 |
2 |
| Allwatec Oy | 4 |
2 |
| Locus Solutions IPCo, LLC | 334 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 9016 |
1 |
| Panasonic Corporation | 19680 |
1 |
| Hitachi, Ltd. | 15881 |
1 |
| Mitsubishi Electric Corporation | 47556 |
1 |
| Board of Regents, The University of Texas System | 6023 |
1 |
| Other owners | 57 |