D06F 39/20
Arrangements for water recovery
D06F39/20 (Arrangements for water recovery) appears on 120 US grants and 135 published applications in this corpus.
Search patents in D06F- Granted patents
- 120
- Published applications
- 135
- Assignees
- 68
- Inventors
- 375
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 3 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 2 | 1 |
| 2010 | 0 | 3 |
| 2011 | 2 | 2 |
| 2012 | 0 | 5 |
| 2013 | 1 | 4 |
| 2014 | 1 | 6 |
| 2015 | 3 | 5 |
| 2016 | 3 | 5 |
| 2017 | 3 | 13 |
| 2018 | 5 | 15 |
| 2019 | 4 | 10 |
| 2020 | 6 | 13 |
| 2021 | 14 | 10 |
| 2022 | 6 | 6 |
| 2023 | 12 | 6 |
| 2024 | 9 | 10 |
| 2025 | 6 | 10 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Washing machine and control method for washing machine29 Sep 2026US 12,747,530 B2Haier Smart Home Co., Ltd.
- Drying system and laundry machines using the same14 Jul 2026US 12,680,217 B2Nanjing Roborock Innovation Technology Co., Ltd.
- Filtering device and washing machine12 May 2026US 12,624,492 B2Haier Smart Home Co., Ltd.
- Space textile cleaning equipment and cleaning method28 Apr 2026US 12,612,721 B2Sichuan Aerospace System Engineering Institute
- Combination washer/dryer cycle for a recreational vehicle24 Mar 2026US 12,584,260 B2Haier US Appliance Solutions, Inc.
- Automated appliances with water recycling20 Aug 2026US 2026/0243009 A1
- Fabric cleaning machine with water circulation function25 Dec 2025US 2025/0389072 A1Ningbo Daman Electric Appliance Co., Ltd
- Laundry treating apparatus4 Dec 2025US 2025/0369171 A1Nanjing Roborock Innovation Technology Co., Ltd.
- Water quality measurement device23 Oct 2025US 2025/0327739 A1Mimbly AB
- Combination washer/dryer cycle for a recreational vehicle10 Jul 2025US 2025/0223743 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Process and system for recycling and reusing gray water104US 5,868,937 AMainstream Engineering Corporation · 1999
- Method of washing laundry and recycling wash water50US 5,787,537 AWater Recovery Systems, LLC · 1998
- Laundry waste water treatment and wash process48US 5,241,720 ATri-O-Clean Laundry Systems, Inc. · 1993
- Washing machine with a multi-function water reservoir48US 5,829,459 AElectrolux Zanussi Elettrodomestici S.p.A. · 1998
- Integral water and heat reclaim system for a washing machine38US 4,777,682 AWashex Machinery Corporation · 1988