- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/38 - Treatment of water, waste water, or sewage by centrifugal separation
Patent holdings for IPC class C02F 1/38
Total number of patents in this class: 845
10-year publication summary
|
79
|
77
|
65
|
73
|
64
|
53
|
46
|
52
|
60
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qwtip LLC | 68 |
26 |
| Evoqua Water Technologies LLC | 930 |
16 |
| Hayward Industries, Inc. | 676 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 33507 |
11 |
| Veolia Water Solutions & Technologies Support | 532 |
11 |
| Smith & Loveless, Inc. | 118 |
9 |
| Eco World Water Corp | 15 |
9 |
| Alfa Laval Corporate AB | 1329 |
7 |
| Ecolab USA Inc. | 5725 |
7 |
| Saudi Arabian Oil Company | 13949 |
7 |
| Veolia Water Technologies, Inc. | 81 |
7 |
| Revive Environmental Technology, LLC | 35 |
7 |
| Halliburton Energy Services, Inc. | 21194 |
6 |
| Chevron U.S.A. Inc. | 4081 |
6 |
| Clean TeQ Pty Ltd | 20 |
6 |
| Safe Foods Corporation | 86 |
6 |
| Sudhin Biopharma | 12 |
6 |
| General Electric Company | 13831 |
5 |
| China Petroleum & Chemical Corporation | 2050 |
5 |
| ConocoPhillips Company | 1701 |
5 |
| Other owners | 670 |