A47L 15/4206
Tubular filters
Official title: {Tubular filters}
A47L15/4206 (Tubular filters) appears on 164 US grants and 189 published applications in this corpus.
Search patents in A47L- Granted patents
- 164
- Published applications
- 189
- Assignees
- 50
- Inventors
- 265
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 3 |
| 2004 | 3 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 1 |
| 2008 | 2 | 5 |
| 2009 | 0 | 4 |
| 2010 | 0 | 5 |
| 2011 | 3 | 10 |
| 2012 | 3 | 14 |
| 2013 | 3 | 14 |
| 2014 | 15 | 11 |
| 2015 | 9 | 10 |
| 2016 | 11 | 15 |
| 2017 | 21 | 14 |
| 2018 | 15 | 15 |
| 2019 | 9 | 8 |
| 2020 | 7 | 3 |
| 2021 | 7 | 8 |
| 2022 | 6 | 1 |
| 2023 | 7 | 11 |
| 2024 | 4 | 10 |
| 2025 | 13 | 11 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Washing machine provided with a microplastic filtering system integrated with the drawer25 Aug 2026US 12,716,160 B2Elbi International S.P.A.
- Cyclone separator and dishwasher4 Aug 2026US 12,697,628 B2Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd.
- Filter for a treatment apparatus21 Apr 2026US 12,605,658 B2Fresh Works Ltd
- Hydraulic manifold assembly for a dishwasher appliance24 Feb 2026US 12,557,964 B2Haier US Appliance Solutions, Inc.
- Filtration device for a water-bearing household appliance27 Jan 2026US 12,534,388 B2emz-Hanauer GmbH & Co. KGaA
- Dishwasher27 Aug 2026US 2026/0248356 A1LG Electronics Inc.
- Dishwasher27 Aug 2026US 2026/0248361 A1LG Electronics Inc.
- A dishwasher and sump arrangement thereof6 Aug 2026US 2026/0224088 A1Electrolux Appliances Aktiebolag
- Filter for a treatment apparatus6 Aug 2026US 2026/0225010 A1Fresh Works Ltd
- Auxiliary gray water source device for commercial kitchens16 Jul 2026US 2026/0198753 A1Seven Hour Drive, LLC
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
- Rotating drum filter for a dishwashing machine45US 8,746,261 B2Whirlpool Corporation · 2014
- Rotating filter for a dishwashing machine43US 8,667,974 B2Whirlpool Corporation · 2014