B07B 4/02
While the mixtures fall
Official title: while the mixtures fall
B07B4/02 (While the mixtures fall) appears on 444 US grants and 277 published applications in this corpus.
Search patents in B07B- Granted patents
- 444
- Published applications
- 277
- Assignees
- 275
- Inventors
- 775
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 11 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 12 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 11 | 0 |
| 1987 | 11 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 7 | 0 |
| 1993 | 9 | 0 |
| 1994 | 14 | 0 |
| 1995 | 16 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 1 |
| 2002 | 7 | 8 |
| 2003 | 8 | 5 |
| 2004 | 5 | 10 |
| 2005 | 10 | 10 |
| 2006 | 3 | 5 |
| 2007 | 7 | 8 |
| 2008 | 5 | 4 |
| 2009 | 7 | 10 |
| 2010 | 2 | 15 |
| 2011 | 5 | 21 |
| 2012 | 16 | 9 |
| 2013 | 9 | 10 |
| 2014 | 14 | 16 |
| 2015 | 20 | 21 |
| 2016 | 9 | 10 |
| 2017 | 16 | 9 |
| 2018 | 9 | 14 |
| 2019 | 18 | 14 |
| 2020 | 8 | 13 |
| 2021 | 4 | 17 |
| 2022 | 13 | 11 |
| 2023 | 10 | 16 |
| 2024 | 13 | 10 |
| 2025 | 8 | 8 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Particle filtration system15 Sep 2026US 12,734,550 B2Aiko.AI, Inc.
- Gas flow separation of powdered metal11 Aug 2026US 12,703,008 B2Rtx Corporation
- Method and device for removing impurities in granules14 Jul 2026US 12,678,836 B2Huachangfeng Equipment Inc.
- Air classifier19 May 2026US 12,629,722 B2Volt Carbon Technologies Inc.
- Method for separating the components of a mixture of fibers and granules by electrostatic neutralization and screening, and corresponding unit10 Feb 2026US 12,544,788 B2Centre National De La Recherche Scientifique
- Air knife with diverging fins for uniform air flow distribution2 Jul 2026US 2026/0183799 A1Webster Action Equipment Company, Inc.
- Integrated screening and air separation system for material processing26 Mar 2026US 2026/0084184 A1Webster Action Equipment Company, Inc.
- Particle Filtration System18 Dec 2025US 2025/0381584 A1Aiko.AI, Inc.
- Gas flow separation of powdered metal16 Oct 2025US 2025/0319491 A1Rtx Corporation
- Systems and methods for particle classification2 Oct 2025US 2025/0303449 A1Group14 Technologies, Inc.
Most cited
By later US patents
- 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
- Pneumatic classifier for tobacco and method39US 4,915,824 A1990