D06F 39/087
Water level measuring or regulating devices
Official title: {Water level measuring or regulating devices}
D06F39/087 (Water level measuring or regulating devices) appears on 244 US grants and 270 published applications in this corpus.
Search patents in D06F- Granted patents
- 244
- Published applications
- 270
- Assignees
- 88
- Inventors
- 607
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 7 |
| 2005 | 2 | 8 |
| 2006 | 1 | 3 |
| 2007 | 3 | 2 |
| 2008 | 4 | 9 |
| 2009 | 2 | 5 |
| 2010 | 6 | 10 |
| 2011 | 7 | 12 |
| 2012 | 3 | 8 |
| 2013 | 11 | 5 |
| 2014 | 6 | 4 |
| 2015 | 7 | 11 |
| 2016 | 4 | 12 |
| 2017 | 3 | 11 |
| 2018 | 11 | 21 |
| 2019 | 13 | 27 |
| 2020 | 13 | 22 |
| 2021 | 30 | 20 |
| 2022 | 19 | 16 |
| 2023 | 9 | 13 |
| 2024 | 16 | 13 |
| 2025 | 18 | 20 |
| 2026 | 9 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Laundry treatment appliance and water saving methods for laundry treatment appliances8 Sep 2026US 12,729,472 B2Haier US Appliance Solutions, Inc.
- Method for draining wash fluid from a top load washing machine appliance1 Sep 2026US 12,723,339 B2Haier US Appliance Solutions, Inc.
- Load detection and cycle modification in laundry appliance applications25 Aug 2026US 12,716,157 B2Whirlpool Corporation
- Washing machine and method for controlling the same23 Jun 2026US 12,662,766 B2Samsung Electronics Co., Ltd.
- Clothes treating apparatus and control method thereof2 Jun 2026US 12,644,223 B2LG Electronics Inc.
- Washing machine appliance and method of operation13 Aug 2026US 2026/0234852 A1Haier US Appliance Solutions, Inc.
- Fluid level monitoring system for dishwashing machines6 Aug 2026US 2026/0227221 A1Ecolab USA Inc.
- Washing machine and controlling method thereof2 Jul 2026US 2026/0185281 A1Samsung Electronics Co., Ltd.
- Heating device for garment care device25 Jun 2026US 2026/0176810 A1Dsw Inc.
- Image-based laundry washing machine level calibration4 Jun 2026US 2026/0152892 A1Midea Group Co., Ltd.
Most cited
By later US patents
- Automatic liquid control system for a clothes washing machine77US 4,503,575 AWhirlpool Corporation · 1985
- Automatic liquid level control54US 4,303,406 AMaytag Corporation · 1981
- Washing machine or an apparatus having a rotatable container42US 6,460,381 B1Sanyo Electric Co., Ltd. · 2002
- Fluid level sensor and controller36US 4,982,606 ARaytheon Company · 1991
- Device for controlling, by means of an electrovalve, the volume liquid flowing to a receptacle34US 5,429,272 AELTEK S.p.A. · 1995