A47L 13/40
Cleaning implements actuated by electrostatic attraction
Official title: Cleaning implements actuated by electrostatic attraction; Devices for cleaning same; Magnetic cleaning implements
A47L13/40 (Cleaning implements actuated by electrostatic attraction) appears on 110 US grants and 100 published applications in this corpus.
Search patents in A47L- Granted patents
- 110
- Published applications
- 100
- Assignees
- 56
- Inventors
- 224
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 4 |
| 2002 | 4 | 2 |
| 2003 | 3 | 4 |
| 2004 | 4 | 4 |
| 2005 | 0 | 6 |
| 2006 | 1 | 10 |
| 2007 | 4 | 9 |
| 2008 | 3 | 6 |
| 2009 | 2 | 1 |
| 2010 | 4 | 4 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 6 |
| 2014 | 2 | 4 |
| 2015 | 8 | 3 |
| 2016 | 4 | 4 |
| 2017 | 0 | 1 |
| 2018 | 3 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 3 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 2 |
| 2024 | 3 | 7 |
| 2025 | 5 | 4 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrostatic cleaning device28 Apr 2026US 12,611,082 B2LG Household & Health Care Ltd.
- Wet robot cleaner and contamination prevention module used therefor10 Mar 2026US 12,569,103 B2Samsung Electronics Co., Ltd.
- Magnetic sweeper10 Feb 2026US 12,543,913 B2
- System and method for retrieving objects9 Sep 2025US 12,409,564 B1
- Remote-access duster17 Jun 2025US 12,329,336 B2
- Foldable handheld magnetic sweeper apparatus20 Aug 2026US 2026/0240399 A1Bluestreak Equipment Inc.
- Method and apparatus device for hair removal and collection16 Jul 2026US 2026/0198746 A1
- Apparatus and method for a cleaning device16 Jul 2026US 2026/0199938 A1Dyson Technology Limited
- Cleaner head for a vacuum cleaner18 Jun 2026US 2026/0165544 A1Dyson Technology Limited
- Pet hair remover30 Apr 2026US 2026/0114699 A1Black & Decker Inc.
Most cited
By later US patents
- Electrostatic particle filtration75US 5,405,434 AThe Scott Fetzer Company · 1995
- Cleaning aid storage mop66US 6,098,239 AQuickie Manufacturing Corporation · 2000
- Particle entrapment system52US 6,513,184 B1S. C. Johnson & Son, Inc. · 2003
- Electrostatic cloth attachment for vacuum head49US 7,337,494 B2Shop Vac Corporation · 2008
- Method for cleaning a surface by using a cationic sponge material39US 6,033,486 A2000