A47L 13/22
With liquid-feeding devices
Official title: with liquid-feeding devices
A47L13/22 (With liquid-feeding devices) appears on 523 US grants and 610 published applications in this corpus.
Search patents in A47L- Granted patents
- 523
- Published applications
- 610
- Assignees
- 177
- Inventors
- 878
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 4 |
| 2002 | 9 | 11 |
| 2003 | 18 | 31 |
| 2004 | 12 | 41 |
| 2005 | 22 | 26 |
| 2006 | 19 | 19 |
| 2007 | 10 | 21 |
| 2008 | 10 | 18 |
| 2009 | 9 | 17 |
| 2010 | 19 | 27 |
| 2011 | 12 | 16 |
| 2012 | 16 | 21 |
| 2013 | 10 | 25 |
| 2014 | 16 | 23 |
| 2015 | 20 | 20 |
| 2016 | 25 | 35 |
| 2017 | 26 | 28 |
| 2018 | 20 | 28 |
| 2019 | 23 | 30 |
| 2020 | 21 | 25 |
| 2021 | 27 | 30 |
| 2022 | 24 | 20 |
| 2023 | 28 | 26 |
| 2024 | 33 | 36 |
| 2025 | 17 | 20 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dispensing package for a floor treatment composition18 Aug 2026US 12,709,445 B2The Procter & Gamble Company
- Shaft for a cleaning tool and a cleaning tool provided with such a shaft11 Aug 2026US 12,702,264 B2Moerman NV
- Ultrasonic cleaning tool and system for cleaning a surface14 Jul 2026US 12,678,834 B2BISSELL Inc.
- Nozzle for cleaner5 May 2026US 12,616,345 B2LG Electronics Inc.
- Multi-functional double-head electric cleaning device14 Apr 2026US 12,599,279 B2Huizhou Yunda Power Electronic Technology Co., Ltd.
- Cleaner assembly with attachable ozone dispenser8 Oct 2026US 2026/0306686 A1O3Waterworks, LLC
- Hand carryable surface cleaning apparatus24 Sep 2026US 2026/0283417 A1Omachron Intellectual Property Inc.
- Dispensing package for a floor treatment composition24 Sep 2026US 2026/0283433 A1The Procter & Gamble Company
- Cleaning device, and method for controlling a cleaning device taking scaling into consideration6 Aug 2026US 2026/0224086 A1Carl Freudenberg KG
- Wet cleaning apparatus and method of operating the same30 Jul 2026US 2026/0215644 A1Versuni Holding B.V.
Most cited
By later US patents
- Cleaning implement having a sprayer nozzle attached to a cleaning head member153US 5,888,006 AThe Procter & Gamble Company · 1999
- Reservoirs for use with cleaning devices151US 6,386,392 B1The Procter & Gamble Company · 2002
- Wet mop and vacuum assembly147US 6,101,671 ARoyal Appliance Mfg. Co. · 2000
- Cordless wet mop and vacuum assembly144US 6,000,088 ARoyal Appliance Mfg. Co. · 1999
- Advanced cleaning system140US 6,540,424 B1The Clorox Company · 2003