B03C 7/003
Pretreatment of the solids prior to electrostatic separation
Official title: {Pretreatment of the solids prior to electrostatic separation}
B03C7/003 (Pretreatment of the solids prior to electrostatic separation) appears on 41 US grants and 33 published applications in this corpus.
Search patents in B03C- Granted patents
- 41
- Published applications
- 33
- Assignees
- 36
- Inventors
- 114
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 4 | 5 |
| 2017 | 2 | 1 |
| 2018 | 3 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 5 |
| 2025 | 2 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Method and apparatus for reducing carbon content in fly ash84US 5,513,755 AJTM Industries, Inc. · 1996
- Method and apparatus for reducing carbon content in particulate mixtures34US 5,299,692 AJTM Industries, Inc. · 1994
- Method of separating a mixture of plastics comprising at least three components using electrostatic techniques26US 5,358,119 AKali und Salz Aktiengesellschaft · 1994
- Microparticle fractionating apparatus and method of fractionating microparticle26US 9,784,659 B2Sony Corporation · 2017
- Microparticle sorting device and method of optimizing fluid stream therein23US 9,087,371 B2Sony Corporation · 2015