B03C 7/00
Separating solids from solids by electrostatic effect
B03C7/00 (Separating solids from solids by electrostatic effect) appears on 288 US grants and 220 published applications in this corpus.
Search patents in B03C- Granted patents
- 288
- Published applications
- 220
- Assignees
- 182
- Inventors
- 596
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 10 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 0 |
| 2002 | 10 | 3 |
| 2003 | 1 | 5 |
| 2004 | 8 | 4 |
| 2005 | 4 | 6 |
| 2006 | 5 | 5 |
| 2007 | 2 | 6 |
| 2008 | 4 | 10 |
| 2009 | 2 | 7 |
| 2010 | 6 | 6 |
| 2011 | 8 | 9 |
| 2012 | 5 | 9 |
| 2013 | 8 | 15 |
| 2014 | 8 | 20 |
| 2015 | 14 | 19 |
| 2016 | 13 | 19 |
| 2017 | 9 | 11 |
| 2018 | 11 | 6 |
| 2019 | 10 | 6 |
| 2020 | 8 | 7 |
| 2021 | 2 | 8 |
| 2022 | 7 | 5 |
| 2023 | 3 | 9 |
| 2024 | 11 | 11 |
| 2025 | 9 | 8 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dielectric particle sorting apparatus25 Aug 2026US 12,715,007 B2Korea Institute of Fusion Energy
- Methods and equipment for treatment of odorous gas streams13 Jan 2026US 12,521,675 B2
- Installation intended to separate, in an electric field, the components of a mixture of fibres and granules using a tribocharger provided with a grating for the selective confinement of said components13 Jan 2026US 12,521,731 B2Centre National De La Recherche Scientifique
- Apparatus for separating the components of a mixture of fibres and granules by beating the mixture by means of an alternating electric field25 Nov 2025US 12,478,981 B2Centre National De La Recharche Scientifique
- Separation of minerals by gas injection18 Nov 2025US 12,472,446 B2Good Earth IP Holdings, LLC
- Method for the separation and recovery of plastics and contaminants through multi-stage separation process13 Aug 2026US 2026/0233268 A1
- Metal powder contaminant removal6 Aug 2026US 2026/0226583 A1
- Transfer module and semiconductor manufacturing equipment including the same16 Apr 2026US 2026/0102776 A1Semes Co., Ltd.
- Method and apparatus for electrostatic separation of glandular trichomes16 Apr 2026US 2026/0102777 A1
- System and process for dry magnetic concentration of fine iron ore concentrates5 Mar 2026US 2026/0061430 A1Vale 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 reducing carbon content in fly ash84US 5,513,755 AJTM Industries, Inc. · 1996
- Separating constituents of a mixture of particles71US 4,874,507 A1989
- Plastics sorting apparatus61US 6,365,857 B1Hitachi Zosen Corporation · 2002
- Method of making an electric field device49US 4,652,318 ANgk Spark Plug Co., Ltd. · 1987