- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/14 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents
Patent holdings for IPC class C02F 11/14
Total number of patents in this class: 514
10-year publication summary
|
53
|
52
|
88
|
46
|
39
|
26
|
20
|
17
|
15
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1189 |
17 |
| Dow Global Technologies LLC | 10328 |
15 |
| Orege | 35 |
15 |
| Ecolab USA Inc. | 5439 |
12 |
| SunCor Energy Inc. | 731 |
11 |
| Veolia Water Solutions & Technologies Support | 537 |
10 |
| S.p.c.m. SA | 249 |
8 |
| Hitachi, Ltd. | 15402 |
7 |
| Konica Minolta, Inc. | 8649 |
7 |
| Swing Corporation | 30 |
7 |
| Vermeer Manufacturing Company | 634 |
7 |
| Anaergia Inc. | 108 |
6 |
| Ishigaki Company Limited | 47 |
6 |
| Kubota Corporation | 3709 |
6 |
| Atlantic Sapphire IP, LLC | 35 |
6 |
| BASF SE | 20728 |
5 |
| Degremont | 93 |
5 |
| FPInnovations | 242 |
5 |
| Kurita Water Industries Ltd. | 1182 |
5 |
| RDP Technologies, Inc. | 33 |
5 |
| Other owners | 349 |