B07B 7/00
Selective separation of solid materials carried by, or dispersed in, gas currents
Official title: Selective separation of solid materials carried by, or dispersed in, gas currents (sieves or filters for separating dispersed particles from gases or vapours B01D)
B07B7/00 (Selective separation of solid materials carried by, or dispersed in, gas currents) appears on 616 US grants and 385 published applications in this corpus.
Search patents in B07B- Granted patents
- 616
- Published applications
- 385
- Assignees
- 376
- Inventors
- 1,147
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 16 | 0 |
| 1981 | 24 | 0 |
| 1982 | 2 | 0 |
| 1983 | 8 | 0 |
| 1984 | 11 | 0 |
| 1985 | 17 | 0 |
| 1986 | 6 | 0 |
| 1987 | 16 | 0 |
| 1988 | 16 | 0 |
| 1989 | 12 | 0 |
| 1990 | 11 | 0 |
| 1991 | 11 | 0 |
| 1992 | 9 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 6 | 0 |
| 1997 | 11 | 0 |
| 1998 | 12 | 0 |
| 1999 | 19 | 0 |
| 2000 | 8 | 0 |
| 2001 | 16 | 1 |
| 2002 | 5 | 9 |
| 2003 | 8 | 11 |
| 2004 | 13 | 11 |
| 2005 | 10 | 5 |
| 2006 | 6 | 11 |
| 2007 | 7 | 16 |
| 2008 | 6 | 6 |
| 2009 | 7 | 15 |
| 2010 | 9 | 19 |
| 2011 | 15 | 18 |
| 2012 | 12 | 9 |
| 2013 | 12 | 14 |
| 2014 | 13 | 17 |
| 2015 | 16 | 20 |
| 2016 | 12 | 21 |
| 2017 | 23 | 26 |
| 2018 | 19 | 26 |
| 2019 | 30 | 19 |
| 2020 | 19 | 23 |
| 2021 | 18 | 23 |
| 2022 | 21 | 21 |
| 2023 | 25 | 13 |
| 2024 | 15 | 13 |
| 2025 | 8 | 10 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B07B 7/08Selective separation of solid materials carried by, or dispersed in, gas currents374
- B07B 7/01Selective separation of solid materials carried by, or dispersed in, gas currents105
- B07B 7/06Selective separation of solid materials carried by, or dispersed in, gas currents85
- B07B 7/04Selective separation of solid materials carried by, or dispersed in, gas currents59
- B07B 7/02Selective separation of solid materials carried by, or dispersed in, gas currents42
- B07B 7/12Selective separation of solid materials carried by, or dispersed in, gas currents4
Recent patents
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- Adjustable static classifier10 Feb 2026US 12,544,787 B2Coperion Process Solutions LLC
- Method for cleaning bulk material, and separating device13 Aug 2026US 2026/0233253 A1Wittmann Technology GmbH
- Silver powder13 Aug 2026US 2026/0233301 A1Dowa Electronics Materials Co., Ltd.
- Device for separating gas from a mixed gas flow6 Aug 2026US 2026/0225014 A1
- Metal powder contaminant removal6 Aug 2026US 2026/0226583 A1
- Vacuuming system for separating undesirable particles from land matter and method using same11 Jun 2026US 2026/0158523 A1Technologie Hoola One Inc.
Most cited
By later US patents
- Cyclonic vacuum generator apparatus and method76US 6,171,356 B22001
- Electrostatically enhanced separator (EES)66US 5,591,253 AElectric Power Research Institute, Inc. · 1997
- Virtual impactor58US 4,767,524 ALovelace Medical Foundation · 1988
- Negative pressure dust collector with a dust receiving bag smoothly inflatable55US 7,695,538 B2San Ford Machinery Co., Ltd. · 2010
- Method and apparatus for obtaining low ash content refuse fuel, paper and plastic products from municipal solid waste and said products53US 4,245,999 A1981