- 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: 525
10-year publication summary
|
52
|
88
|
46
|
39
|
26
|
20
|
24
|
20
|
9
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1258 |
18 |
| Orege | 39 |
15 |
| Ecolab USA Inc. | 5796 |
13 |
| SunCor Energy Inc. | 734 |
12 |
| Dow Global Technologies LLC | 10944 |
11 |
| Veolia Water Solutions & Technologies Support | 533 |
10 |
| Hitachi, Ltd. | 16094 |
7 |
| Konica Minolta, Inc. | 9119 |
7 |
| S.p.c.m. SA | 238 |
7 |
| Swing Corporation | 30 |
7 |
| Vermeer Manufacturing Company | 671 |
7 |
| Anaergia Inc. | 106 |
6 |
| Kubota Corporation | 4391 |
6 |
| Atlantic Sapphire IP, LLC | 35 |
6 |
| BASF SE | 21303 |
5 |
| Degremont | 78 |
5 |
| FPInnovations | 225 |
5 |
| Ishigaki Company Limited | 45 |
5 |
| RDP Technologies, Inc. | 34 |
5 |
| MT AquaPolymer, Inc. | 15 |
5 |
| Other owners | 363 |