C02F 1/385
By centrifuging suspensions
Official title: {by centrifuging suspensions (centrifuges B04B)}
C02F1/385 (By centrifuging suspensions) appears on 316 US grants and 367 published applications in this corpus.
Search patents in C02F- Granted patents
- 316
- Published applications
- 367
- Assignees
- 279
- Inventors
- 908
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 3 |
| 2003 | 4 | 4 |
| 2004 | 4 | 6 |
| 2005 | 1 | 8 |
| 2006 | 6 | 5 |
| 2007 | 4 | 5 |
| 2008 | 3 | 4 |
| 2009 | 1 | 18 |
| 2010 | 8 | 18 |
| 2011 | 8 | 8 |
| 2012 | 6 | 14 |
| 2013 | 10 | 17 |
| 2014 | 6 | 18 |
| 2015 | 6 | 20 |
| 2016 | 15 | 20 |
| 2017 | 20 | 34 |
| 2018 | 15 | 28 |
| 2019 | 21 | 23 |
| 2020 | 22 | 18 |
| 2021 | 20 | 27 |
| 2022 | 15 | 19 |
| 2023 | 20 | 7 |
| 2024 | 10 | 10 |
| 2025 | 14 | 22 |
| 2026 | 7 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oil-water mixture treatment device and method15 Sep 2026US 12,735,334 B2China Petroleum & Chemical Corporation
- Dewatering method and system18 Aug 2026US 12,709,562 B2Weir Minerals Australia Ltd.
- Liquid treatment unit and method14 Jul 2026US 12,678,805 B2Au Environmental Pty Ltd
- Method and apparatus for multi-deselection in wastewater treatment21 Apr 2026US 12,606,472 B2D.C. Water & Sewer Authority
- Method for preparing cuprous chloride by high-value utilization of chloride ion-containing wasterwater7 Apr 2026US 12,595,186 B2Jiangsu University of Technology
- Wastewater treatment system and method of treating wastewater24 Sep 2026US 2026/0285727 A1Pegras Asia Pacific Pty Ltd
- Method and system for cleaning polluted marine exhaust gas cleaning liquid20 Aug 2026US 2026/0242265 A1Alfa Laval Corporate AB
- Filtration aid compositions and methods of use30 Jul 2026US 2026/0217582 A1Locus Solutions Ipco, LLC
- Removal of metal ions in water for electrolysis23 Jul 2026US 2026/0209091 A1University of Houston System
- Water treatment device and operation method for same28 May 2026US 2026/0145970 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Continuous process for the reclamation of waste drilling fluids141US 4,482,459 ANewpark Waste Treatment Systems Inc. · 1984
- Method and apparatus for treating water in a cooling system80US 5,145,585 A1992
- Method and apparatus for processing manure80US 5,290,451 AEcotechniek B. V. · 1994
- Method and apparatus for treating organic wastewater77US 4,415,452 A1983
- Apparatus for treating effluents71US 5,145,256 AEnvironmental Equipment Corporation · 1992