B01D 24/4642
With valves
Official title: {with valves, e.g. rotating valves}
B01D24/4642 (With valves) appears on 86 US grants and 30 published applications in this corpus.
Search patents in B01D- Granted patents
- 86
- Published applications
- 30
- Assignees
- 41
- Inventors
- 107
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 5 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 3 | 3 |
| 2017 | 0 | 2 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 3 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method and apparatus for water filtration6 May 2025US 12,290,766 B2Lyco Manufacturing, Inc.
- Filter apparatus and method9 Apr 2024US 11,951,420 B2Evolution Aqua Limited
- Method and apparatus for water filtration27 Dec 2022US 11,534,703 B2Lyco Manufacturing, Inc.
- Mechanical filter element, apparatus and method30 Aug 2022US 11,426,681 B2Evolution Aqua Limited
- Mechanical filter element, apparatus and method19 Jul 2022US 11,389,751 B2Evolution Aqua Limited
- Method and Apparatus for Water Filtration24 Jul 2025US 2025/0235803 A1Lyco Manufacturing, Inc.
- Regenerative Media Filter Cleaning Apparatus and Method18 May 2023US 2023/0149836 A1Neptune-Benson, LLC
- Method and Apparatus for Water Filtration30 Mar 2023US 2023/0095493 A1Lyco Manufacturing, Inc.
- Integrated unit for intake and pretreatment with local backwashing4 Feb 2021US 2021/0031125 A1Ide Projects Ltd.
- Method and Apparatus for Water Filtration17 Sep 2020US 2020/0289961 A1Lyco Manufacturing, Inc.
Most cited
By later US patents
- Combined air/water backwash in a travelling bridge filter83US 5,401,405 ADavis Water & Waste Industries, Inc. · 1995
- Apparatus and method for clarification of water using combined flotation and filtration processes50US 4,377,485 ALenox Institute for Research, Inc. · 1983
- Multi-port valve with multiple operation modes43US 10,344,877 B2Tesla, Inc. · 2019
- Filter apparatus41US 4,152,265 AAqua-Aerobic Systems, Inc. · 1979
- Filter media support and containment system39US 4,133,766 AKoppers Company, Inc. · 1979