B03B 5/62
Washing granular, powdered or lumpy materials: by hydraulic classifiers
Official title: by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
B03B5/62 (Washing granular, powdered or lumpy materials: by hydraulic classifiers) appears on 297 US grants and 158 published applications in this corpus.
Search patents in B03B- Granted patents
- 297
- Published applications
- 158
- Assignees
- 169
- Inventors
- 483
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 9 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 10 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 9 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 11 | 0 |
| 1990 | 9 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 1 |
| 2002 | 2 | 3 |
| 2003 | 3 | 2 |
| 2004 | 2 | 3 |
| 2005 | 1 | 3 |
| 2006 | 2 | 11 |
| 2007 | 1 | 4 |
| 2008 | 4 | 5 |
| 2009 | 1 | 5 |
| 2010 | 4 | 10 |
| 2011 | 8 | 6 |
| 2012 | 3 | 2 |
| 2013 | 4 | 4 |
| 2014 | 4 | 6 |
| 2015 | 6 | 11 |
| 2016 | 7 | 10 |
| 2017 | 10 | 7 |
| 2018 | 8 | 8 |
| 2019 | 8 | 8 |
| 2020 | 2 | 9 |
| 2021 | 10 | 8 |
| 2022 | 6 | 9 |
| 2023 | 9 | 10 |
| 2024 | 14 | 4 |
| 2025 | 3 | 4 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Spiral separator and apparatus therefor10 Mar 2026US 12,569,860 B2Orekinetics Investments Pty Ltd
- Separator apparatus and feed arrangement for increased capacity4 Nov 2025US 12,458,980 B2FLSmidth A/S
- System and method for four dimensionally separating materials5 Aug 2025US 12,377,421 B2
- Classifier and method of classifying4 Mar 2025US 12,240,016 B2
- Deep cleaning method for highly contaminated soil19 Nov 2024US 12,145,183 B1Cleanaway Company Limited
- System and Method for Reclaiming and Cleaning Sand20 Aug 2026US 2026/0241389 A1McLanahan Corporation
- System and method for producing a fuel product25 Jun 2026US 2026/0176541 A1
- Separator apparatus and feed arrangement for increased capacity21 May 2026US 2026/0138138 A1FLSmidth A/S
- Cascading density separators for facilitating density-based classification of particulate material12 Mar 2026US 2026/0070066 A1
- Method for collecting inert particles in kitchen waste slurry based on venturi-type particle collector15 Jan 2026US 2026/0014568 A1Tongji University
Most cited
By later US patents
- Wet process recovery system for solid waste85US 5,104,047 A1992
- Thin channel split flow process and apparatus for particle fractionation69US 4,894,146 AUniversity of Utah · 1990
- Hydraulic reactor and classifier for solid particles with ultrasonic application58US 5,947,299 AServicios Condumex · 1999
- Thermal convection counter streaming sedimentation method for controlling the sex of mammalian offspring51US 4,067,965 A1978
- Z-axis flywheel control of a computer input device40US 6,064,370 AKye Systems Corp. · 2000