B03C
Magnetic or electrostatic separation of solid materials from solid materials or fluids
Official title: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B01D59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B03B, B07B)
B03C (Magnetic or electrostatic separation of solid materials from solid materials or fluids) appears on 6,734 US grants and 6,016 published applications in this corpus.
Search patents in B03C- Granted patents
- 6,734
- Published applications
- 6,016
- Assignees
- 3,189
- Inventors
- 12,769
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 107 | 0 |
| 1977 | 94 | 0 |
| 1978 | 96 | 0 |
| 1979 | 79 | 0 |
| 1980 | 123 | 0 |
| 1981 | 122 | 0 |
| 1982 | 96 | 0 |
| 1983 | 70 | 0 |
| 1984 | 68 | 0 |
| 1985 | 84 | 0 |
| 1986 | 80 | 0 |
| 1987 | 99 | 0 |
| 1988 | 95 | 0 |
| 1989 | 78 | 0 |
| 1990 | 80 | 0 |
| 1991 | 87 | 0 |
| 1992 | 80 | 0 |
| 1993 | 77 | 0 |
| 1994 | 80 | 0 |
| 1995 | 97 | 0 |
| 1996 | 106 | 0 |
| 1997 | 104 | 0 |
| 1998 | 112 | 0 |
| 1999 | 132 | 0 |
| 2000 | 120 | 0 |
| 2001 | 117 | 30 |
| 2002 | 118 | 127 |
| 2003 | 114 | 131 |
| 2004 | 93 | 172 |
| 2005 | 94 | 167 |
| 2006 | 104 | 215 |
| 2007 | 116 | 187 |
| 2008 | 131 | 209 |
| 2009 | 119 | 216 |
| 2010 | 150 | 244 |
| 2011 | 142 | 254 |
| 2012 | 165 | 261 |
| 2013 | 205 | 279 |
| 2014 | 222 | 292 |
| 2015 | 231 | 271 |
| 2016 | 215 | 290 |
| 2017 | 208 | 269 |
| 2018 | 213 | 266 |
| 2019 | 216 | 284 |
| 2020 | 216 | 292 |
| 2021 | 215 | 312 |
| 2022 | 201 | 331 |
| 2023 | 173 | 276 |
| 2024 | 231 | 255 |
| 2025 | 235 | 251 |
| 2026 | 124 | 135 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- B03C 3/00Separating dispersed particles from gases or vapour2,832
- B03C 1/00Magnetic separation2,820
- B03C 2201/00Details of magnetic or electrostatic separationIndexing code2,749
- B03C 5/00Separating dispersed particles from liquids by electrostatic effect869
- B03C 7/00Separating solids from solids by electrostatic effect288
- B03C 11/00Separation by high-voltage electrical fields, not provided for in other groups of157
- B03C 9/00Electrostatic separation not provided for in any single one of the other72
Recent patents
- Particle collection vessel, particle collection device and particle collection method6 Oct 2026US 12,752,284 B2Amano Corporation
- Inverter apparatus provided with dust collecting unit6 Oct 2026US 12,752,285 B2Ls Electric Co., Ltd.
- System and process for sorting and recovery of recyclable materials from mixed waste6 Oct 2026US 12,752,306 B1Wm Intellectual Property Holdings, L.L.C.
- Single molecule nanoparticle nanowire for molecular electronic sensing6 Oct 2026US 12,754,164 B2SemiconBio Inc.
- Membrane for collecting airborne particles22 Sep 2026US 12,741,287 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Devices and systems for isolating particles in solution by particle permitivity8 Oct 2026US 2026/0307073 A1Sigil Biosciences, Inc.
- Hybrid filter unit8 Oct 2026US 2026/0307082 A1Brairtech Sweden AB
- Insulator and wet electrostatic precipitator having the same8 Oct 2026US 2026/0307083 A1
- Caliper-type electrostatic precipitator and vehicle braking device including same1 Oct 2026US 2026/0298299 A1Korea Institute of Machinery & Materials
- Electrostatic precipitator with rotary collecting walls24 Sep 2026US 2026/0284675 A1Nestec S.A.
Most cited
By later US patents
- System for determining the spatial position and angular orientation of an object565US 5,828,770 ANorthern Digital Inc. · 1998
- Method and apparatus for programmable fluidic processing487US 6,294,063 B1Board of Regents, The University of Texas System · 2001
- Magnetic iron-dextran microspheres466US 4,452,773 ACanadian Patents and Development Limited · 1984
- Micro-flow system for particle separation and analysis417US 6,432,630 B1Scandinanian Micro Biodevices A/S · 2002
- Method and apparatus for dielectrophoretic manipulation of chemical species395US 4,390,403 A1983