A47L 9/0433
Toothed gearings
Official title: {Toothed gearings}
A47L9/0433 (Toothed gearings) appears on 111 US grants and 144 published applications in this corpus.
Search patents in A47L- Granted patents
- 111
- Published applications
- 144
- Assignees
- 51
- Inventors
- 257
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 6 |
| 2003 | 1 | 5 |
| 2004 | 3 | 2 |
| 2005 | 2 | 2 |
| 2006 | 3 | 4 |
| 2007 | 3 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 4 |
| 2010 | 4 | 4 |
| 2011 | 3 | 1 |
| 2012 | 1 | 6 |
| 2013 | 5 | 7 |
| 2014 | 6 | 0 |
| 2015 | 3 | 6 |
| 2016 | 2 | 3 |
| 2017 | 7 | 8 |
| 2018 | 4 | 5 |
| 2019 | 2 | 6 |
| 2020 | 4 | 8 |
| 2021 | 6 | 11 |
| 2022 | 4 | 7 |
| 2023 | 8 | 15 |
| 2024 | 11 | 14 |
| 2025 | 7 | 8 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dust collecting device and an electric vacuum cleaner with it1 Sep 2026US 12,721,488 B2Nippon Seal (H.K.) Co., Ltd.
- Floor brush assembly for vacuum cleaner, and vacuum cleaner25 Aug 2026US 12,714,272 B2Jiangsu Midea Cleaning Appliances Co., Ltd.
- Cleaner head25 Aug 2026US 12,714,273 B2Dyson Technology Limited
- Floor brush assembly for vacuum cleaner and vacuum cleaner11 Aug 2026US 12,702,258 B2Jiangsu Midea Cleaning Appliances Co., Ltd.
- Method of automatically adjusting strength of suction power of suction motor and cordless vacuum cleaner therefor12 May 2026US 12,622,557 B2Samsung Electronics Co., Ltd.
- Electric Cleaning Apparatus11 Jun 2026US 2026/0157584 A1Ningbo POWERFUL Pool Equipment Co., Ltd
- Robot cleaner26 Mar 2026US 2026/0083288 A1Samsung Electronics Co., Ltd.
- Drive system for a wet floor cleaner26 Mar 2026US 2026/0083295 A1Dyson Technology Limited
- Drive system for a floor cleaner12 Mar 2026US 2026/0069096 A1Dyson Technology Limited
- Drive system for a floor cleaner12 Mar 2026US 2026/0069106 A1Dyson Technology Limited
Most cited
By later US patents
- Rotary brush device and vacuum cleaner using the same180US 6,323,570 B1Matsushita Electric Industrial Co., Ltd. · 2001
- Rotary brush device and vacuum cleaner using the same167US 6,400,048 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Rotary brush device and vacuum cleaner using the same145US 6,437,465 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Vacuum cleaner nozzle with double brush76US 4,426,751 AWhirlpool Corporation · 1984
- Wheel driven suction nozzle71US 5,960,514 AThe Hoover Company · 1999