C02F 1/488
For separation of magnetic materials
Official title: {for separation of magnetic materials, e.g. magnetic flocculation}
C02F1/488 (For separation of magnetic materials) appears on 275 US grants and 351 published applications in this corpus.
Search patents in C02F- Granted patents
- 275
- Published applications
- 351
- Assignees
- 228
- Inventors
- 762
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 3 |
| 2002 | 1 | 3 |
| 2003 | 4 | 6 |
| 2004 | 3 | 2 |
| 2005 | 2 | 15 |
| 2006 | 2 | 10 |
| 2007 | 4 | 9 |
| 2008 | 4 | 12 |
| 2009 | 5 | 13 |
| 2010 | 10 | 14 |
| 2011 | 4 | 15 |
| 2012 | 8 | 14 |
| 2013 | 18 | 21 |
| 2014 | 14 | 19 |
| 2015 | 13 | 28 |
| 2016 | 9 | 11 |
| 2017 | 11 | 16 |
| 2018 | 22 | 12 |
| 2019 | 11 | 19 |
| 2020 | 10 | 16 |
| 2021 | 6 | 13 |
| 2022 | 13 | 21 |
| 2023 | 13 | 19 |
| 2024 | 11 | 13 |
| 2025 | 15 | 18 |
| 2026 | 6 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recycling system4 Aug 2026US 12,698,223 B2BYD Company Limited
- Flocculation cyclone device, marine plastic removal system using the same, ship provided with the system, and operation method for the ship16 Jun 2026US 12,654,179 B2Ambitious Technologies, LTD.
- Method for separating iron element in brine and application thereof26 May 2026US 12,637,360 B2BYD Company Limited
- Accelerated settlement of flocs after electrocoagulation/electrochemical process using ballasted flocculation7 Apr 2026US 12,595,194 B2Evoqua Water Technologies LLC
- Devices and methods for treatment of wastewater17 Feb 2026US 12,552,693 B2University of South Carolina
- Urea processing apparatus and urea processing method20 Aug 2026US 2026/0242261 A1Samsung Electronics Co., Ltd.
- Water desalination systems6 Aug 2026US 2026/0225934 A1Badwater Alchemy Technologies Inc.
- Process for separating nanoplastics from aqueous matrices by means of using carbon black particles16 Jul 2026US 2026/0200763 A1Universidad Autonoma De Madrid
- Accelerated settlement of flocs after electrocoagulation/electrochemical process using ballasted flocculation2 Jul 2026US 2026/0184610 A1Evoqua Water Technologies LLC
- Water treatment device capable of selective recovery of specific magnetic filter layers11 Jun 2026US 2026/0159417 A1Daegu Gyeongbuk Institute of Science and Technology
Most cited
By later US patents
- Magnetic iron-dextran microspheres466US 4,452,773 ACanadian Patents and Development Limited · 1984
- Magnetic separation using chelated magnetic ions88US 4,508,625 A1985
- Magnetic adsorbent composite68US 4,201,831 AGeneral Electric Company · 1980
- Industrial waste water treatment60US 5,679,257 A1997
- Apparatus and methods for magnetic separation56US 6,361,749 B1Immunivest Corporation · 2002