A47L 15/4223
Devices for water discharge
Official title: {Devices for water discharge, e.g. devices to prevent siphoning, non-return valves}
A47L15/4223 (Devices for water discharge) appears on 158 US grants and 187 published applications in this corpus.
Search patents in A47L- Granted patents
- 158
- Published applications
- 187
- Assignees
- 64
- Inventors
- 347
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 4 |
| 2006 | 0 | 1 |
| 2007 | 2 | 2 |
| 2008 | 1 | 5 |
| 2009 | 1 | 5 |
| 2010 | 2 | 5 |
| 2011 | 1 | 4 |
| 2012 | 6 | 6 |
| 2013 | 3 | 5 |
| 2014 | 5 | 8 |
| 2015 | 2 | 5 |
| 2016 | 6 | 9 |
| 2017 | 4 | 6 |
| 2018 | 8 | 13 |
| 2019 | 9 | 15 |
| 2020 | 13 | 20 |
| 2021 | 12 | 10 |
| 2022 | 13 | 5 |
| 2023 | 12 | 21 |
| 2024 | 10 | 11 |
| 2025 | 20 | 14 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drain hose and home appliance28 Jul 2026US 12,690,745 B2Samsung Electronics Co., Ltd.
- Routing component for a dishwasher appliance14 Jul 2026US 12,678,014 B2Haier US Appliance Solutions, Inc.
- Warewash machine with tray support system and associated rack track with a tray support3 Feb 2026US 12,539,011 B2Illinois Tool Works Inc.
- Dishwasher13 Jan 2026US 12,520,986 B2Samsung Electronics Co., Ltd.
- Dishwasher13 Jan 2026US 12,520,990 B2LG Electronics Inc.
- Fluid circulation assembly for a dishwasher appliance17 Sep 2026US 2026/0272256 A1Haier US Appliance Solutions, Inc.
- Drain assembly and glasswasher incorporating the same27 Aug 2026US 2026/0248352 A1Moyer Diebel Ltd.
- A dishwasher and sump arrangement thereof6 Aug 2026US 2026/0224088 A1Electrolux Appliances Aktiebolag
- Dishwasher with energy recovery system16 Jul 2026US 2026/0198752 A1Ecolab USA Inc.
- Dish washer and wash water filter module9 Jul 2026US 2026/0191394 A1LG Electronics Inc.
Most cited
By later US patents
- Dishwasher83US 6,189,551 B1Fisher & Paykel Limited · 2001
- Washer66US 7,270,132 B2Matsushita Electric Industrial Co., Ltd. · 2007
- Adjustable dishwasher conduit valve system49US 9,241,604 B2General Electric Company · 2016
- Dishwasher38US 6,447,081 B1Fisher & Paykel Limited · 2002
- Dishwasher36US 6,244,277 B1Fisher & Paykel Limited · 2001