- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/24 - Treatment of water, waste water, or sewage by flotation
Patent holdings for IPC class C02F 1/24
Total number of patents in this class: 934
10-year publication summary
|
92
|
94
|
79
|
103
|
104
|
96
|
76
|
59
|
58
|
20
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kurita Water Industries Ltd. | 1110 |
24 |
| Evoqua Water Technologies LLC | 904 |
21 |
| Metso Outotec Finland Oy | 795 |
21 |
| Veolia Water Solutions & Technologies Support | 547 |
18 |
| Orege | 36 |
15 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
14 |
| Exterran Water Solutions ULC | 56 |
14 |
| Kemira Oyj | 1167 |
13 |
| Cidra Corporate Services, Inc. | 208 |
12 |
| Ecolab USA Inc. | 5190 |
11 |
| Opec Remediation Technologies Pty Limited | 12 |
10 |
| 1501367 Alberta Ltd. | 13 |
9 |
| Cameron International Corporation | 1305 |
9 |
| Cidra Corporate Services, LLC | 91 |
8 |
| Outotec (Finland) Oy | 491 |
8 |
| Enviro-Tech Systems, L.L.C. | 9 |
7 |
| General Electric Company | 18133 |
6 |
| Conopco, Inc. | 4644 |
6 |
| Siemens Energy, Inc. | 1770 |
6 |
| Chevron U.S.A. Inc. | 3774 |
6 |
| Other owners | 696 |