B03B 5/68
Washing granular, powdered or lumpy materials: by water impulse
Official title: by water impulse (hydraulic classifiers B03B5/62)
B03B5/68 (Washing granular, powdered or lumpy materials: by water impulse) appears on 47 US grants and 21 published applications in this corpus.
Search patents in B03B- Granted patents
- 47
- Published applications
- 21
- Assignees
- 16
- Inventors
- 55
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 5 |
| 2019 | 1 | 5 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for recycling building material23 Sep 2025US 12,420,288 B2Hydro-Mineral Recycling GmbH & Co. KG
- Conveyor sluice system9 Jul 2024US 12,030,061 B2
- System and method for treating biomass material31 Jan 2023US 11,565,272 B2Valmet Corporation
- Classifier box with a removable trap15 Mar 2022US 11,273,452 B1
- System for separation of viscous materials from solids14 Dec 2021US 11,198,133 B2Stitech Industries Inc
- Method of separating active material, jig, and apparatus for separating active material17 Sep 2026US 2026/0279942 A1Honda Motor Co., Ltd.
- Transparent Gold Pan and Recovery Wheel Device16 Apr 2026US 2026/0102775 A1
- System and method for atomized powder processing and a processed powder2 Jan 2025US 2025/0001431 A1General Electric Company
- Device and method for recycling building material15 Aug 2024US 2024/0269688 A1Hydro-Mineral Recycling GmbH & Co. KG
- Conveyor sluice system6 Oct 2022US 2022/0314232 A1
Most cited
By later US patents
- Continuous steric FFF device for the size separation of particles33US 4,250,026 AUniversity of Utah · 1981
- Classifying and air-stratifying gold separator with inclined sequential chute cone array and size-classifying screen23US 6,216,367 B12001
- Gold pan with flukes and stratifiers19US 5,447,239 A1995
- Gold pan with agitator knobules and insert cup16US 5,788,293 A1998
- Metal separating process and apparatus13US 4,008,152 A1977