B07B 13/11
Involving travel of particles over surfaces which separate by centrifugal force or
Official title: involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters
B07B13/11 (Involving travel of particles over surfaces which separate by centrifugal force or) appears on 126 US grants and 74 published applications in this corpus.
Search patents in B07B- Granted patents
- 126
- Published applications
- 74
- Assignees
- 88
- Inventors
- 235
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 6 | 2 |
| 2003 | 0 | 2 |
| 2004 | 3 | 0 |
| 2005 | 1 | 3 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 3 |
| 2012 | 3 | 1 |
| 2013 | 1 | 6 |
| 2014 | 2 | 4 |
| 2015 | 5 | 7 |
| 2016 | 6 | 3 |
| 2017 | 3 | 4 |
| 2018 | 1 | 2 |
| 2019 | 1 | 5 |
| 2020 | 2 | 3 |
| 2021 | 5 | 7 |
| 2022 | 2 | 3 |
| 2023 | 4 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for dry granular mixtures separation31 Mar 2026US 12,589,412 B2
- Production of synthesis gas from gasifying and reforming carbonaceous material23 Sep 2025US 12,421,464 B2Enerkem, Inc.
- Treatment plant with optimised densimetric sorting and related treatment process15 Apr 2025US 12,275,016 B2Avenir Innovation
- Sizing and separating granular particles6 Jun 2023US 11,666,943 B2Gulf Conveyor System S Pty Ltd
- Separation of granular particles30 May 2023US 11,660,640 B2Gulf Conveyor System S Pty Ltd
- Device for sorting metallic fibers20 Aug 2026US 2026/0241416 A1Flexofibers Europa, S.L.
- Apparatus for dry granular mixtures separation30 Jul 2026US 2026/0216751 A1
- Apparatus for dry granular mixtures separation29 May 2025US 2025/0170614 A1
- Heavy mineral harvesting methods and systems31 Oct 2024US 2024/0359216 A1Radcat Research, LLC
- Method and system for waste separation using a multi-spiral separator15 Aug 2024US 2024/0269687 A1
Most cited
By later US patents
- Method and apparatus for reducing carbon content in fly ash84US 5,513,755 AJTM Industries, Inc. · 1996
- Nonferrous material sorting apparatus37US 5,462,172 ASenko Kogyo Co., Ltd. · 1995
- Method and apparatus for reducing carbon content in particulate mixtures34US 5,299,692 AJTM Industries, Inc. · 1994
- Air separation of recyclable material28US 7,810,646 B2Emerging Acquisitions, LLC · 2010
- Continuous recovery of base metal from insulated wire scrap21US 4,022,638 ADart Industries Inc. · 1977