- 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: 103
10-year publication summary
|
5
|
2
|
9
|
4
|
7
|
6
|
6
|
6
|
9
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1778 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 31562 |
8 |
| Kurita Water Industries Ltd. | 1195 |
6 |
| Dexerials Corporation | 1934 |
3 |
| Terralithium LLC | 55 |
3 |
| Centre National de La Recherche Scientifique | 10464 |
2 |
| BYD Company Limited | 5023 |
2 |
| ConocoPhillips Company | 1675 |
2 |
| Temple University of the Commonwealth System of Higher Education | 621 |
2 |
| Allwatec Oy | 4 |
2 |
| Vulcan Energie Ressourcen GmbH | 7 |
2 |
| Locus Solutions IPCo, LLC | 324 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8752 |
1 |
| Panasonic Corporation | 20088 |
1 |
| Hitachi, Ltd. | 15513 |
1 |
| Mitsubishi Electric Corporation | 46197 |
1 |
| Sanyo Electric Co., Ltd. | 3679 |
1 |
| Board of Regents, The University of Texas System | 5808 |
1 |
| Idemitsu Kosan Co., Ltd. | 4224 |
1 |
| PPG Industries Ohio, Inc. | 3449 |
1 |
| Other owners | 52 |