B07B 4/00
Separating solids from solids by subjecting their mixture to gas currents
Official title: Separating solids from solids by subjecting their mixture to gas currents (using tables or jigs B03B4/00)
B07B4/00 (Separating solids from solids by subjecting their mixture to gas currents) appears on 675 US grants and 481 published applications in this corpus.
Search patents in B07B- Granted patents
- 675
- Published applications
- 481
- Assignees
- 428
- Inventors
- 1,221
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 13 | 0 |
| 1978 | 5 | 0 |
| 1979 | 10 | 0 |
| 1980 | 10 | 0 |
| 1981 | 19 | 0 |
| 1982 | 6 | 0 |
| 1983 | 10 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 11 | 0 |
| 1987 | 15 | 0 |
| 1988 | 11 | 0 |
| 1989 | 9 | 0 |
| 1990 | 13 | 0 |
| 1991 | 14 | 0 |
| 1992 | 7 | 0 |
| 1993 | 11 | 0 |
| 1994 | 21 | 0 |
| 1995 | 18 | 0 |
| 1996 | 13 | 0 |
| 1997 | 9 | 0 |
| 1998 | 10 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 1 |
| 2002 | 12 | 9 |
| 2003 | 9 | 8 |
| 2004 | 6 | 14 |
| 2005 | 13 | 14 |
| 2006 | 4 | 11 |
| 2007 | 10 | 10 |
| 2008 | 5 | 18 |
| 2009 | 7 | 14 |
| 2010 | 6 | 23 |
| 2011 | 12 | 29 |
| 2012 | 23 | 14 |
| 2013 | 13 | 17 |
| 2014 | 23 | 24 |
| 2015 | 29 | 36 |
| 2016 | 16 | 25 |
| 2017 | 29 | 17 |
| 2018 | 16 | 21 |
| 2019 | 28 | 33 |
| 2020 | 18 | 35 |
| 2021 | 21 | 30 |
| 2022 | 23 | 22 |
| 2023 | 20 | 22 |
| 2024 | 18 | 15 |
| 2025 | 12 | 10 |
| 2026 | 17 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Particle filtration system15 Sep 2026US 12,734,550 B2Aiko.AI, Inc.
- Directional air knife1 Sep 2026US 12,722,184 B2A. G. Stacker Inc.
- Processing method for electronic/electric device component waste25 Aug 2026US 12,715,026 B2JX Advanced Metals Corporation
- Gas flow separation of powdered metal11 Aug 2026US 12,703,008 B2Rtx Corporation
- Dynamic fluidized bed system and dynamic fluidized separation method10 Sep 2026US 2026/0264112 A1China University of Mining and Technology
- Classifier for positive electrode active material and method for regenerating lithium precursor by using same10 Sep 2026US 2026/0265070 A1SK Innovation Co., Ltd.
- Method for cleaning bulk material, and separating device13 Aug 2026US 2026/0233253 A1Wittmann Technology GmbH
- Air knife with diverging fins for uniform air flow distribution2 Jul 2026US 2026/0183799 A1Webster Action Equipment Company, Inc.
- Device for removing foreign substances4 Jun 2026US 2026/0151799 A1Hitachi High-Tech Corporation
Most cited
By later US patents
- Screening device and process111US 4,678,560 ANorton Company · 1987
- Corn cob collecting apparatus for use with a combine52US 5,941,768 A1999
- Waste aggregate mass density separator45US 5,361,909 A1994
- Air classifier41US 4,296,864 AOnoda Cement Co., Ltd. · 1981
- Pyrolysis process for reclaiming desirable materials from vehicle tires41US 6,221,329 B1Svedala Industries, Inc. · 2001