- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/00 - Treatment of sludgeDevices therefor
Patent holdings for IPC class C02F 11/00
Total number of patents in this class: 799
10-year publication summary
|
47
|
53
|
56
|
49
|
59
|
51
|
46
|
51
|
45
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Easymining Sweden AB | 72 |
10 |
| Anaergia Inc. | 106 |
8 |
| Lystek International Corp. | 26 |
8 |
| Tongji University | 613 |
7 |
| Veolia Water Solutions & Technologies Support | 533 |
7 |
| JFE Steel Corporation | 7527 |
6 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
5 |
| Hitachi, Ltd. | 16094 |
5 |
| Mitsubishi Materials Corporation | 2472 |
5 |
| Nanyang Technological University | 2206 |
5 |
| Powerchina Water Environment Goverance | 20 |
5 |
| University of Florida Research Foundation, Inc. | 4174 |
4 |
| Chemische Fabrik Budenheim KG | 207 |
4 |
| Excelsior Inc. | 12 |
4 |
| Kurita Water Industries Ltd. | 1283 |
4 |
| Metawater Co., Ltd. | 200 |
4 |
| Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 126 |
4 |
| Outotec (Finland) Oy | 455 |
4 |
| Yoshino Gypsum Co., Ltd. | 264 |
4 |
| Firebrand Solutions Incorporated | 4 |
4 |
| Other owners | 692 |