B01D 2201/0446
Suspended from plates at the upper side of the filter elements
Official title: suspended from plates at the upper side of the filter elements
B01D2201/0446 (Suspended from plates at the upper side of the filter elements) appears on 197 US grants and 114 published applications in this corpus.
Search patents in B01D- Granted patents
- 197
- Published applications
- 114
- Assignees
- 119
- Inventors
- 319
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 8 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 3 |
| 2002 | 10 | 5 |
| 2003 | 5 | 7 |
| 2004 | 2 | 6 |
| 2005 | 2 | 4 |
| 2006 | 4 | 1 |
| 2007 | 2 | 3 |
| 2008 | 1 | 3 |
| 2009 | 2 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 2 |
| 2012 | 3 | 7 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 5 | 4 |
| 2016 | 4 | 6 |
| 2017 | 1 | 5 |
| 2018 | 1 | 3 |
| 2019 | 6 | 3 |
| 2020 | 7 | 7 |
| 2021 | 6 | 11 |
| 2022 | 6 | 13 |
| 2023 | 6 | 5 |
| 2024 | 4 | 3 |
| 2025 | 11 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Method and apparatus for testing the integrity of filter elements142US 5,417,101 APall Corporation · 1995
- Filtration apparatus comprising an ultrasonic cleaning device and corresponding cleaning process67US 5,062,965 ABertin & Cie · 1991
- Multiple cartridge filter assembly with removable filter cartridge array64US 4,419,234 APall Corporation · 1983
- Self-regenerating pressurized filtering system for liquids56US 5,389,243 A1995
- Septic tank effluent filtering method48US 5,492,635 AOrenco Systems, Inc. · 1996