A47L 15/4208
Arrangements to prevent clogging of the filters
Official title: {Arrangements to prevent clogging of the filters, e.g. self-cleaning}
A47L15/4208 (Arrangements to prevent clogging of the filters) appears on 226 US grants and 242 published applications in this corpus.
Search patents in A47L- Granted patents
- 226
- Published applications
- 242
- Assignees
- 52
- Inventors
- 341
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 4 |
| 2004 | 3 | 10 |
| 2005 | 0 | 3 |
| 2006 | 3 | 17 |
| 2007 | 4 | 7 |
| 2008 | 5 | 5 |
| 2009 | 4 | 4 |
| 2010 | 4 | 2 |
| 2011 | 3 | 14 |
| 2012 | 4 | 20 |
| 2013 | 8 | 13 |
| 2014 | 13 | 11 |
| 2015 | 15 | 13 |
| 2016 | 12 | 17 |
| 2017 | 21 | 18 |
| 2018 | 20 | 20 |
| 2019 | 17 | 11 |
| 2020 | 9 | 10 |
| 2021 | 9 | 6 |
| 2022 | 8 | 5 |
| 2023 | 6 | 7 |
| 2024 | 8 | 13 |
| 2025 | 11 | 7 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Dishwasher system81US 3,989,054 AGeneral Motors Corporation · 1976
- Method of rinsing in a dishwasher and device for carrying out the method60US 5,711,325 AWhirlpool Europe B.V. · 1998
- Dishwasher filter system58US 7,350,527 B2Whirlpool Corporation · 2008
- Filter device47US 7,347,212 B2BSH Bosch und Siemens Hausgeraete GmbH · 2008
- Pump and soil collection system for a dishwasher46US 6,182,674 B2Whirlpool Corporation · 2001