B03B 5/50
Rake classifiers
B03B5/50 (Rake classifiers) appears on 5 US grants and 4 published applications in this corpus.
Search patents in B03B- Granted patents
- 5
- Published applications
- 4
- Assignees
- 5
- Inventors
- 10
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and device for washing/cleaning granular material from slag and washing/cleaning bottom/boiler ash from a thermal waste treatment, and mineral residue and recycling material21 Jul 2026US 12,686,038 B2Pro Clir GmbH
- Sorting apparatus for arthropods and method of use thereof10 Nov 2015US 9,180,464 B2Oxitec Limited
- Rake classifier1 Aug 1989US 4,853,115 ADorr-Oliver Incorporated
- Ore concentrator22 Apr 1986US 4,584,098 A
- Dewatering and classifying apparatus29 Jun 1976US 3,966,592 A
- Method and device for washing/cleaning granular material from slag and washing/cleaning bottom/boiler ash from a thermal waste treatment, and mineral residue and recycling material16 Jan 2025US 2025/0018442 A1H-U-R Hamburg GmbH Hamburger-Umwelt-Recyclingtechnologien
- Method and device for washing/cleaning granular material from slag and washing/cleaning bottom/boiler ash from a thermal waste treatment, and mineral residue and recycling material17 Aug 2023US 2023/0256481 A1H-U-R Hamburg GmbH Hamburger-Umwelt-Recyclingtechnologien
- Sorting apparatus for arthropods and method of use thereof8 Jan 2015US 2015/0008163 A1Oxitec Limited
- Separating Device6 Nov 2008US 2008/0272047 A1Mellegard & Naij AB
Most cited
By later US patents