B01D 33/48
By flushing
Official title: by flushing, e.g. counter-current air-bumps
B01D33/48 (By flushing) appears on 383 US grants and 245 published applications in this corpus.
Search patents in B01D- Granted patents
- 383
- Published applications
- 245
- Assignees
- 239
- Inventors
- 655
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 12 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 11 | 0 |
| 1990 | 15 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 17 | 0 |
| 1994 | 13 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 12 | 0 |
| 2000 | 5 | 0 |
| 2001 | 14 | 3 |
| 2002 | 5 | 5 |
| 2003 | 7 | 6 |
| 2004 | 5 | 4 |
| 2005 | 3 | 6 |
| 2006 | 4 | 10 |
| 2007 | 3 | 3 |
| 2008 | 5 | 2 |
| 2009 | 1 | 10 |
| 2010 | 2 | 8 |
| 2011 | 2 | 8 |
| 2012 | 7 | 8 |
| 2013 | 8 | 10 |
| 2014 | 7 | 12 |
| 2015 | 10 | 21 |
| 2016 | 8 | 16 |
| 2017 | 5 | 13 |
| 2018 | 9 | 11 |
| 2019 | 15 | 12 |
| 2020 | 14 | 13 |
| 2021 | 7 | 10 |
| 2022 | 11 | 19 |
| 2023 | 7 | 8 |
| 2024 | 9 | 13 |
| 2025 | 10 | 6 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rotating irrigation screen apparatus22 Sep 2026US 12,741,240 B2
- Method of filtrating liquid, and filtration apparatus for filtrating liquid25 Aug 2026US 12,714,956 B2Renasys AS
- Method and apparatus for treating mixtures of liquids and solids19 May 2026US 12,630,976 B2Lean Pulp Oy
- Disc filter having a suction device, and method for filtering fluids using a disc filter3 Mar 2026US 12,564,803 B2Mecana AG
- Concentration device and concentration method17 Feb 2026US 12,553,019 B2Murata Manufacturing Co., Ltd.
- Device and method for automatically recovering logging data storage1 Oct 2026US 2026/0295480 A1China Petroleum & Chemical Corporation
- Powdered adsorbent lossless recovery method based on belt filter10 Sep 2026US 2026/0263973 A1Zhejiang Yongzheng Lithium Technology Co., Ltd.
- Algae harvesting device23 Jul 2026US 2026/0206700 A1University of Technology, Sydney
- Device and method for separating a liquid from a feedstock23 Jul 2026US 2026/0208075 A1Herbold Meckesheim GmbH
- Machine chip and coolant flow cleaning system for endless belt conveyor9 Jul 2026US 2026/0192409 A1Mayfran International B.V.
Most cited
By later US patents
- Method and apparatus for cleaning filter material in a filter apparatus utilizing a suction generating nozzle99US 5,951,878 AAqua-Aerobic Systems, Inc. · 1999
- Apparatus and method for separation of solids from liquid82US 5,814,230 A1998
- Multi-purpose rotating membrane filter78US 4,925,557 A1990
- Fluid processing apparatus65US 3,997,447 AComposite Sciences, Inc. · 1976
- Apparatus for mechanical purification of waste water54US 4,639,315 AMecapec S.A. · 1987