B03B 5/00
Washing granular, powdered or lumpy materials
Official title: Washing granular, powdered or lumpy materials; Wet separating (separating by pneumatic tables or by pneumatic jigs B03B4/00)
B03B5/00 (Washing granular, powdered or lumpy materials) appears on 1,337 US grants and 755 published applications in this corpus.
Search patents in B03B- Granted patents
- 1,337
- Published applications
- 755
- Assignees
- 695
- Inventors
- 2,215
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 29 | 0 |
| 1978 | 30 | 0 |
| 1979 | 26 | 0 |
| 1980 | 30 | 0 |
| 1981 | 44 | 0 |
| 1982 | 35 | 0 |
| 1983 | 21 | 0 |
| 1984 | 28 | 0 |
| 1985 | 32 | 0 |
| 1986 | 25 | 0 |
| 1987 | 20 | 0 |
| 1988 | 28 | 0 |
| 1989 | 37 | 0 |
| 1990 | 19 | 0 |
| 1991 | 28 | 0 |
| 1992 | 29 | 0 |
| 1993 | 34 | 0 |
| 1994 | 30 | 0 |
| 1995 | 18 | 0 |
| 1996 | 22 | 0 |
| 1997 | 29 | 0 |
| 1998 | 32 | 0 |
| 1999 | 34 | 0 |
| 2000 | 30 | 0 |
| 2001 | 22 | 4 |
| 2002 | 9 | 11 |
| 2003 | 14 | 11 |
| 2004 | 9 | 23 |
| 2005 | 13 | 22 |
| 2006 | 25 | 25 |
| 2007 | 7 | 13 |
| 2008 | 14 | 24 |
| 2009 | 11 | 23 |
| 2010 | 17 | 32 |
| 2011 | 18 | 23 |
| 2012 | 15 | 14 |
| 2013 | 20 | 29 |
| 2014 | 24 | 32 |
| 2015 | 31 | 36 |
| 2016 | 31 | 38 |
| 2017 | 41 | 48 |
| 2018 | 31 | 36 |
| 2019 | 38 | 60 |
| 2020 | 29 | 38 |
| 2021 | 35 | 40 |
| 2022 | 47 | 46 |
| 2023 | 31 | 35 |
| 2024 | 48 | 43 |
| 2025 | 32 | 27 |
| 2026 | 14 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B03B 5/28Washing granular, powdered or lumpy materials: by sink-float separation518
- B03B 5/02Washing granular, powdered or lumpy materials: using shaken, pulsated or stirred beds342
- B03B 5/62Washing granular, powdered or lumpy materials: by hydraulic classifiers297
- B03B 5/48Washing granular, powdered or lumpy materials: by mechanical classifiers174
- B03B 5/68Washing granular, powdered or lumpy materials: by water impulse47
- B03B 5/60Washing granular, powdered or lumpy materials: by non-mechanical classifiers34
Recent patents
- Centrifugal density separation of waste plastic6 Oct 2026US 12,752,283 B2Eastman Chemical Company
- System and method for processing a slurry29 Sep 2026US 12,747,645 B2Flowback Fluids LLC
- 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
- System and method for recycling plastics7 Jul 2026US 12,673,331 B2
- Energy aware processing load distribution system and method16 Jun 2026US 12,656,842 B2The Research Foundation for The State University of New York
- Centrifugal separator having an improved flow and system comprising such a centrifugal separator24 Sep 2026US 2026/0284674 A1FLSmidth A/S
- Method of separating active material, jig, and apparatus for separating active material17 Sep 2026US 2026/0279942 A1Honda Motor Co., Ltd.
- System and Method for Reclaiming and Cleaning Sand20 Aug 2026US 2026/0241389 A1McLanahan Corporation
- Method for the separation and recovery of plastics and contaminants through multi-stage separation process13 Aug 2026US 2026/0233268 A1
- System and method for segregation of materials from shredded lithium-ion batteries30 Jul 2026US 2026/0216735 A1Metastable Materials Private Limited
Most cited
By later US patents
- Absorption-enhanced differential extraction device202US 5,971,158 AUniversity of Washington · 1999
- Method and apparatus for separating particles by size134US 7,108,137 B2Wisconsin Alumni Research Foundation · 2006
- Particle separation121US 4,673,512 AInternationale Octrooi Maatschappij "Octropfa" BV · 1987
- Recycling system100US 5,143,308 APlastic Recycling Alliance, LP · 1992
- Method and apparatus for sorting particles98US 6,808,075 B2Cytonome, Inc. · 2004