A47L 9/00
Details or accessories of suction cleaners
Official title: Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
A47L9/00 (Details or accessories of suction cleaners) appears on 9,006 US grants and 10,218 published applications in this corpus.
Search patents in A47L- Granted patents
- 9,006
- Published applications
- 10,218
- Assignees
- 1,628
- Inventors
- 11,362
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 57 | 0 |
| 1977 | 30 | 0 |
| 1978 | 29 | 0 |
| 1979 | 27 | 0 |
| 1980 | 44 | 0 |
| 1981 | 37 | 0 |
| 1982 | 47 | 0 |
| 1983 | 42 | 0 |
| 1984 | 35 | 0 |
| 1985 | 56 | 0 |
| 1986 | 47 | 0 |
| 1987 | 76 | 0 |
| 1988 | 59 | 0 |
| 1989 | 78 | 0 |
| 1990 | 83 | 0 |
| 1991 | 95 | 0 |
| 1992 | 91 | 0 |
| 1993 | 70 | 0 |
| 1994 | 68 | 0 |
| 1995 | 72 | 0 |
| 1996 | 83 | 0 |
| 1997 | 73 | 0 |
| 1998 | 126 | 0 |
| 1999 | 136 | 0 |
| 2000 | 158 | 0 |
| 2001 | 139 | 57 |
| 2002 | 145 | 185 |
| 2003 | 164 | 182 |
| 2004 | 139 | 283 |
| 2005 | 110 | 329 |
| 2006 | 115 | 314 |
| 2007 | 203 | 334 |
| 2008 | 175 | 290 |
| 2009 | 187 | 306 |
| 2010 | 230 | 314 |
| 2011 | 201 | 229 |
| 2012 | 159 | 316 |
| 2013 | 258 | 291 |
| 2014 | 296 | 320 |
| 2015 | 258 | 296 |
| 2016 | 257 | 377 |
| 2017 | 296 | 472 |
| 2018 | 339 | 541 |
| 2019 | 431 | 638 |
| 2020 | 475 | 660 |
| 2021 | 480 | 681 |
| 2022 | 525 | 605 |
| 2023 | 514 | 627 |
| 2024 | 509 | 633 |
| 2025 | 412 | 516 |
| 2026 | 270 | 422 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Central vacuum system and inlet valves therefor6 Oct 2026US 12,751,587 B2H-P Products, Inc.
- Hair cutting assembly and cleaning apparatus6 Oct 2026US 12,751,588 B2Jiangsu Midea Cleaning Appliances Co., Ltd.
- Debris bin6 Oct 2026US 12,751,589 B2Shenzhen Silver Star Intelligent Group Co., Ltd.
- Cleaning system and cleaning method6 Oct 2026US 12,751,590 B2Pixart Imaging Inc.
- Cleaning apparatus, and housing and sensor used therefor6 Oct 2026US 12,751,591 B2Beijing Roborock Technology Co., Ltd.
- Vacuum cleaner with two turbines, and operating method for same8 Oct 2026US 2026/0305892 A1Hilti Aktiengesellschaft
- Surface cleaning apparatus and docking station usable therewith8 Oct 2026US 2026/0305893 A1Omachron Intellectual Property Inc.
- Waste tape recovery device8 Oct 2026US 2026/0305894 A1Fuji Corporation
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Apparatus and method for controlling a cleaning robot8 Oct 2026US 2026/0305900 A1BSH Hausgeräte GmbH
Most cited
By later US patents
- Flexible plastics vacuum cleaner core1,473US 5,778,939 ADual Voltage Co. Ltd. · 1998
- Electric tool powered by a plurality of battery packs and adapter therefor1,253US 8,813,866 B2Makita Corporation · 2014
- Air flow-producing device, such as a vacuum cleaner or a blower1,158US 7,712,182 B2Milwaukee Electric Tool Corporation · 2010
- Articulated tubular conduit arm for sucking gaseous fluids1,149US 4,540,202 A1985
- Home cleaning robot729US 6,459,955 B1The Procter & Gamble Company · 2002