D06F 34/22
Condition of the washing liquid
Official title: Condition of the washing liquid, e.g. turbidity
D06F34/22 (Condition of the washing liquid) appears on 364 US grants and 430 published applications in this corpus.
Search patents in D06F- Granted patents
- 364
- Published applications
- 430
- Assignees
- 129
- Inventors
- 907
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 3 |
| 2002 | 4 | 3 |
| 2003 | 5 | 7 |
| 2004 | 2 | 11 |
| 2005 | 6 | 8 |
| 2006 | 5 | 7 |
| 2007 | 3 | 15 |
| 2008 | 7 | 10 |
| 2009 | 6 | 10 |
| 2010 | 6 | 11 |
| 2011 | 10 | 6 |
| 2012 | 5 | 16 |
| 2013 | 7 | 11 |
| 2014 | 8 | 5 |
| 2015 | 4 | 9 |
| 2016 | 9 | 13 |
| 2017 | 10 | 12 |
| 2018 | 12 | 23 |
| 2019 | 15 | 31 |
| 2020 | 17 | 30 |
| 2021 | 36 | 30 |
| 2022 | 22 | 30 |
| 2023 | 13 | 34 |
| 2024 | 30 | 48 |
| 2025 | 41 | 31 |
| 2026 | 19 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of monitoring a dispensing assembly of a washing machine appliance8 Sep 2026US 12,729,470 B2Haier US Appliance Solutions, Inc.
- Laundry treatment appliance and water saving methods for laundry treatment appliances8 Sep 2026US 12,729,472 B2Haier US Appliance Solutions, Inc.
- Laundry treatment device and control method therefor28 Jul 2026US 12,692,638 B2LG Electronics Inc.
- Washing machine and method of controlling the same28 Jul 2026US 12,692,639 B2Samsung Electronics Co., Ltd.
- Detect wash additives in a washing machine appliance30 Jun 2026US 12,668,907 B2Haier US Appliance Solutions, Inc.
- Temperature-specific performance deviation correction apparatus and correction method for photosensor detecting nephelometric turbidity units1 Oct 2026US 2026/0297831 A1LG Electronics Inc.
- Method of using turbidity measurements to detect wash additives in a washing machine appliance24 Sep 2026US 2026/0286591 A1Haier US Appliance Solutions, Inc.
- Device for controlling a washing machine10 Sep 2026US 2026/0263974 A1ABZ Zierler GmbH & Co. KG
- Multi-sensor assembly for a washing machine appliance10 Sep 2026US 2026/0265977 A1Haier US Appliance Solutions, Inc.
- Conductivity sensor for a washing machine appliance10 Sep 2026US 2026/0265978 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Method of selecting a wash cycle for an appliance121US 5,611,867 AMaytag Corporation · 1997
- Heating vessel with chromium-enriched stainless steel substrate promoting adherence of thin film heater thereon93US 5,557,704 APifco Limited · 1996
- Machine for cleansing articles76US 5,291,626 AGeneral Electric Company · 1994
- System and method for adjusting the operating cycle of a cleaning appliance74US 5,560,060 AGeneral Electric Company · 1996
- Sensor device and methods for using same68US 6,958,693 B2Sandia Corporation · 2005