A47L 9/045
Friction gearings
Official title: {Friction gearings}
A47L9/045 (Friction gearings) appears on 10 US grants and 7 published applications in this corpus.
Search patents in A47L- Granted patents
- 10
- Published applications
- 7
- Assignees
- 9
- Inventors
- 20
- Latest grant
- 21 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Robot cleaner21 Feb 2023US 11,583,155 B2LG Electronics Inc.
- Vacuum cleaner base with agitator drive assembly23 Sep 2014US 8,839,484 B2BISSELL Homecare, Inc.
- Vacuum cleaner with modular clutch assembly5 Nov 2013US 8,572,804 B2BISSELL Homecare, Inc.
- Cleaning tool with rotatably driven working tool24 Jul 2007US 7,246,408 B2Dupro AG
- Manually-powered floor sweeper with vacuum port24 Jul 2007US 7,246,409 B2Oreck Holdings, LLC
- Robot cleaner3 Jun 2021US 2021/0161346 A1LG Electronics Inc.
- Clutch for a vacuum sweeper26 Dec 2013US 2013/0341149 A1NSS Enterprises, Inc.
- Vacuum cleaner with modular clutch assembly12 Jan 2012US 2012/0005857 A1BISSELL Homecare, Inc.
- Vacuum cleaner base with agitator drive assembly28 Jul 2011US 2011/0179596 A1BISSELL Homecare, Inc.
- Vacuum cleaner attachment7 Apr 2005US 2005/0071948 A1Oreck Holdings, LLC
Most cited
By later US patents
- Vacuum cleaner having the function of wet wiping rag22US 5,241,724 ASamsung Electronics Co., Ltd. · 1993
- Vacuum cleaner having a wet duster device15US 5,857,239 AKwanju Electronics Co., Ltd. · 1999
- Vacuum cleaner with modular clutch assembly9US 8,572,804 B2BISSELL Homecare, Inc. · 2013
- Vacuum cleaner nozzle having rotating brush6US 4,577,366 AShop Vac Corporation · 1986
- Suction cleaning device4US 4,580,314 A1986