D06F 39/007
Arrangements of water softeners
Official title: {Arrangements of water softeners}
D06F39/007 (Arrangements of water softeners) appears on 89 US grants and 100 published applications in this corpus.
Search patents in D06F- Granted patents
- 89
- Published applications
- 100
- Assignees
- 42
- Inventors
- 191
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 8 |
| 2006 | 0 | 3 |
| 2007 | 0 | 3 |
| 2008 | 0 | 4 |
| 2009 | 0 | 5 |
| 2010 | 3 | 3 |
| 2011 | 4 | 0 |
| 2012 | 1 | 3 |
| 2013 | 1 | 5 |
| 2014 | 1 | 5 |
| 2015 | 2 | 8 |
| 2016 | 4 | 13 |
| 2017 | 12 | 8 |
| 2018 | 11 | 5 |
| 2019 | 5 | 6 |
| 2020 | 6 | 3 |
| 2021 | 8 | 4 |
| 2022 | 3 | 4 |
| 2023 | 3 | 2 |
| 2024 | 3 | 4 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for determining presence of water softener21 Oct 2025US 12,446,755 B2Haier US Appliance Solutions, Inc.
- Laundry treatment appliance with water softening system8 Apr 2025US 12,270,142 B2Electrolux Appliances Aktiebolag
- Washing machine and control method thereof10 Dec 2024US 12,163,268 B2Samsung Electronics Co., Ltd.
- Laundry treatment appliance with water softening system21 May 2024US 11,987,921 B2Electrolux Appliances Aktiebolag
- Mobile firefighter gear cleaner23 Jan 2024US 11,879,203 B2HC Risk Reduction, LLC
- Water softening device and washing machine8 May 2025US 2025/0146204 A1Samsung Electronics Co., Ltd.
- Washing machine and control method thereof20 Feb 2025US 2025/0059694 A1Samsung Electronics Co., Ltd.
- System and method for determining presence of water softener11 Jul 2024US 2024/0225411 A9Haier US Appliance Solutions, Inc.
- Drum-type washing machine having softening apparatus11 Jul 2024US 2024/0229330 A9Samsung Electronics Co., Ltd.
- System and method for determining presence of water softener25 Apr 2024US 2024/0130601 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Household appliance using water, namely, a washing machine, with improved device for reducing the water hardness49US 6,766,812 B1ELTEK S.p.A. · 2004
- Washing machine28US 6,557,382 B1Hitachi, Ltd. · 2003
- Water treatment system and method23US 7,846,340 B2Siemens Water Technologies Corp. · 2010
- Device and method for use in cleaning laundry19US 5,978,994 AVision International Production, Inc. · 1999
- Method and system for washing19US 7,950,254 B2The Procter & Gamble Company · 2011