- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/00 - Treatment of sludge; Devices therefor
Patent holdings for IPC class C02F 11/00
Total number of patents in this class: 793
10-year publication summary
|
52
|
61
|
47
|
53
|
56
|
48
|
59
|
51
|
43
|
19
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lystek International Corp. | 23 |
9 |
| Anaergia Inc. | 111 |
8 |
| Easymining Sweden AB | 59 |
8 |
| Mitsubishi Materials Corporation | 2378 |
7 |
| JFE Steel Corporation | 6067 |
6 |
| Veolia Water Solutions & Technologies Support | 547 |
6 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
5 |
| Hitachi, Ltd. | 16452 |
5 |
| The Chugoku Electric Power Co., Inc. | 498 |
5 |
| Holcim Technology Ltd. | 868 |
5 |
| Powerchina Water Environment Goverance | 20 |
5 |
| University of Florida Research Foundation, Inc. | 3883 |
4 |
| Chemische Fabrik Budenheim KG | 229 |
4 |
| Excelsior Inc. | 18 |
4 |
| Kurita Water Industries Ltd. | 1110 |
4 |
| Metawater Co., Ltd. | 181 |
4 |
| Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 122 |
4 |
| Nanyang Technological University | 1739 |
4 |
| Outotec (Finland) Oy | 491 |
4 |
| Tongji University | 440 |
4 |
| Other owners | 688 |