A47L 15/4219
Water recirculation
Official title: {Water recirculation (A47L15/0078 takes precedence)}
A47L15/4219 (Water recirculation) appears on 512 US grants and 608 published applications in this corpus.
Search patents in A47L- Granted patents
- 512
- Published applications
- 608
- Assignees
- 97
- Inventors
- 724
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 1 |
| 2003 | 3 | 4 |
| 2004 | 1 | 11 |
| 2005 | 0 | 10 |
| 2006 | 7 | 16 |
| 2007 | 5 | 14 |
| 2008 | 8 | 10 |
| 2009 | 7 | 10 |
| 2010 | 9 | 16 |
| 2011 | 6 | 19 |
| 2012 | 9 | 29 |
| 2013 | 8 | 30 |
| 2014 | 23 | 40 |
| 2015 | 25 | 34 |
| 2016 | 32 | 35 |
| 2017 | 42 | 44 |
| 2018 | 39 | 37 |
| 2019 | 38 | 42 |
| 2020 | 41 | 45 |
| 2021 | 32 | 39 |
| 2022 | 43 | 19 |
| 2023 | 26 | 22 |
| 2024 | 27 | 28 |
| 2025 | 21 | 26 |
| 2026 | 19 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dishwasher28 Jul 2026US 12,690,744 B2LG Electronics Inc.
- Dishwasher including a flow controller assembly16 Jun 2026US 12,653,371 B2Electrolux Appliances Aktiebolag
- Dishwasher including a flow controller assembly2 Jun 2026US 12,642,418 B2Electrolux Appliances Aktiebolag
- Dishwasher with a dish rack2 Jun 2026US 12,642,422 B2Whirlpool Corporation
- Washing apparatus21 Apr 2026US 12,605,033 B2LG Electronics Inc.
- Dishwasher appliance and a freeze prevention operation1 Oct 2026US 2026/0294202 A1Haier US Appliance Solutions, Inc.
- Dishwashing machine and dishwasher load receptacle with expansion possibility1 Oct 2026US 2026/0294203 A1BSH Hausgeräte GmbH
- Dishwashers with hybrid thermoelectric and electric heating systems for water heating and dish drying1 Oct 2026US 2026/0294205 A1Samsung Electronics Co., Ltd.
- Dishwasher with a dish rack1 Oct 2026US 2026/0294207 A1Whirlpool Corporation
- Fluid circulation assembly for a dishwasher appliance17 Sep 2026US 2026/0272256 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Multiple wash zone dishwasher194US 7,594,513 B2Whirlpool Corporation · 2009
- Multiple wash zone dishwasher153US 7,445,013 B2Whirlpool Corporation · 2008
- Dishwashing machine130US 5,331,986 ADaewoo Eelctronics Company, Ltd. · 1994
- Dishwasher having rotating zone wash sprayer121US 7,523,758 B2Whirlpool Corporation · 2009
- Dishwasher113US 5,470,142 AFisher & Paykel Limited · 1995