D06F 21/00
Washing machines with receptacles
Official title: Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement (with receptacles serving both for washing and centrifugally separating water from the laundry D06F23/00, D06F25/00; program-control aspects D06F33/00)
D06F21/00 (Washing machines with receptacles) appears on 232 US grants and 297 published applications in this corpus.
Search patents in D06F- Granted patents
- 232
- Published applications
- 297
- Assignees
- 61
- Inventors
- 494
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 3 |
| 2003 | 1 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 3 |
| 2006 | 3 | 0 |
| 2007 | 1 | 3 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 4 |
| 2012 | 1 | 6 |
| 2013 | 2 | 11 |
| 2014 | 3 | 12 |
| 2015 | 9 | 16 |
| 2016 | 16 | 14 |
| 2017 | 7 | 13 |
| 2018 | 9 | 20 |
| 2019 | 8 | 27 |
| 2020 | 12 | 49 |
| 2021 | 30 | 34 |
| 2022 | 38 | 24 |
| 2023 | 30 | 19 |
| 2024 | 23 | 11 |
| 2025 | 10 | 8 |
| 2026 | 4 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Laundry washing machine with removable agitator25 Aug 2026US 12,716,155 B2Wuxi Little Swan Electric Co., Ltd.
- Laundry washing machine with spiral variable length agitator24 Mar 2026US 12,584,257 B2Midea Group Co., Ltd.
- Impeller for laundry washing machine10 Feb 2026US 12,546,043 B2Midea Group Co., Ltd.
- Laundry appliance including a filtering agitator having an internal fluid pumping structure6 Jan 2026US 12,516,465 B2Whirlpool Corporation
- Laundry systems23 Dec 2025US 12,503,801 B2Hamilton Sundstrand Corporation
- Laundry appliance with removable basket assembly1 Oct 2026US 2026/0297834 A1Whirlpool Corporation
- Laundry treating appliance having a door assembly17 Sep 2026US 2026/0275614 A1Whirlpool Corporation
- Detergent supply device and laundry treatment apparatus having the same20 Aug 2026US 2026/0243002 A1LG Electronics Inc.
- Laundry appliance including oblique bellows and door deflector with horizontal bottom9 Jul 2026US 2026/0193827 A1Whirlpool Corporation
- Impeller for laundry washing machine18 Jun 2026US 2026/0168150 A1Midea Group Co., Ltd.
Most cited
By later US patents
- Washing machine to produce three-dimensional motion41US 9,080,279 B2LG Electronics Inc. · 2015
- Clothes washing machine35US 4,175,409 AGeneral Electric Company · 1979
- Method and apparatus for containing and agitating the contents of a container31US 6,311,527 B1Notetry Limited · 2001
- Washing machine and method of controlling washing machine31US 8,910,335 B2LG Electronics Inc. · 2014
- Washing machine and washing machine thereof24US 9,487,898 B2Haier Group Corporation · 2016