- 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: 93
10-year publication summary
|
5
|
2
|
10
|
4
|
8
|
7
|
6
|
6
|
9
|
0
|
| 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. | 1731 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 29800 |
8 |
| Kurita Water Industries Ltd. | 1159 |
5 |
| Dexerials Corporation | 1922 |
3 |
| Terralithium LLC | 55 |
3 |
| Centre National de La Recherche Scientifique | 10124 |
2 |
| Temple University of the Commonwealth System of Higher Education | 600 |
2 |
| Allwatec Oy | 4 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8545 |
1 |
| Panasonic Corporation | 20313 |
1 |
| Hitachi, Ltd. | 15239 |
1 |
| Mitsubishi Electric Corporation | 44904 |
1 |
| Sanyo Electric Co., Ltd. | 3789 |
1 |
| Board of Regents, The University of Texas System | 5627 |
1 |
| Idemitsu Kosan Co., Ltd. | 4109 |
1 |
| PPG Industries Ohio, Inc. | 3453 |
1 |
| Mitsubishi Rayon Co., Ltd. | 944 |
1 |
| Kaneka Corporation | 4495 |
1 |
| 1720618 Ontario Inc. | 4 |
1 |
| 2Alfa Hydrotech AB | 1 |
1 |
| Other owners | 47 |