B01D 33/073
Arranged for inward flow filtration
Official title: arranged for inward flow filtration
B01D33/073 (Arranged for inward flow filtration) appears on 464 US grants and 222 published applications in this corpus.
Search patents in B01D- Granted patents
- 464
- Published applications
- 222
- Assignees
- 264
- Inventors
- 758
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 9 | 0 |
| 1978 | 12 | 0 |
| 1979 | 10 | 0 |
| 1980 | 12 | 0 |
| 1981 | 15 | 0 |
| 1982 | 12 | 0 |
| 1983 | 4 | 0 |
| 1984 | 12 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 11 | 0 |
| 1990 | 11 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 11 | 0 |
| 1994 | 9 | 0 |
| 1995 | 16 | 0 |
| 1996 | 15 | 0 |
| 1997 | 14 | 0 |
| 1998 | 14 | 0 |
| 1999 | 15 | 0 |
| 2000 | 8 | 0 |
| 2001 | 13 | 4 |
| 2002 | 6 | 6 |
| 2003 | 11 | 5 |
| 2004 | 6 | 10 |
| 2005 | 5 | 9 |
| 2006 | 8 | 8 |
| 2007 | 6 | 12 |
| 2008 | 6 | 5 |
| 2009 | 3 | 3 |
| 2010 | 5 | 9 |
| 2011 | 3 | 6 |
| 2012 | 4 | 11 |
| 2013 | 7 | 6 |
| 2014 | 4 | 7 |
| 2015 | 5 | 11 |
| 2016 | 7 | 11 |
| 2017 | 8 | 13 |
| 2018 | 8 | 9 |
| 2019 | 10 | 12 |
| 2020 | 14 | 13 |
| 2021 | 7 | 10 |
| 2022 | 5 | 15 |
| 2023 | 11 | 12 |
| 2024 | 7 | 6 |
| 2025 | 9 | 5 |
| 2026 | 5 | 4 |
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
- Self-cleaning intake filter9 Jun 2026US 12,649,118 B2Wairere Research Limited
- Method and apparatus for treating mixtures of liquids and solids19 May 2026US 12,630,976 B2Lean Pulp Oy
- Filtering device and washing machine12 May 2026US 12,624,492 B2Haier Smart Home Co., Ltd.
- Drum washer with gravity assist drainage17 Feb 2026US 12,551,825 B2Andritz Inc.
- Filter screen, tubular filter and filter device30 Jul 2026US 2026/0216624 A1Maag Ettlinger GmbH
- Machine chip and coolant flow cleaning system for endless belt conveyor9 Jul 2026US 2026/0192409 A1Mayfran International B.V.
- Dispositif de collecte de particules solides contenues dans une soupe de matires organiques7 May 2026US 2026/0124645 A1Green Creative Ltd.
- Centrifugal solids-liquid separator system19 Feb 2026US 2026/0048348 A1
- Device for cleaning and/or suctioning pile fibers for pile cloth filtration11 Dec 2025US 2025/0375725 A1Mecana AG
Most cited
By later US patents
- Filtration method and apparatus86US 4,790,942 AMembrex, Inc. · 1988
- Small volume rotary filter86US 4,876,013 AMembrex, Inc. · 1989
- Rotary drum filter with reciprocating nozzle means70US 5,470,472 ADorr-Oliver Incorporated · 1995
- Self-cleaning filter and vortexer68US 4,108,778 A1978
- Rotary drum type device for separating solid particles from a liquid59US 5,618,424 ANagaoka International Corporation · 1997