A47L 9/28
Installation of the electric equipment
Official title: Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
A47L9/28 (Installation of the electric equipment) appears on 3,234 US grants and 4,338 published applications in this corpus.
Search patents in A47L- Granted patents
- 3,234
- Published applications
- 4,338
- Assignees
- 701
- Inventors
- 5,579
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 9 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 12 | 0 |
| 1988 | 11 | 0 |
| 1989 | 10 | 0 |
| 1990 | 19 | 0 |
| 1991 | 13 | 0 |
| 1992 | 14 | 0 |
| 1993 | 15 | 0 |
| 1994 | 10 | 0 |
| 1995 | 13 | 0 |
| 1996 | 15 | 0 |
| 1997 | 17 | 0 |
| 1998 | 17 | 0 |
| 1999 | 27 | 0 |
| 2000 | 22 | 0 |
| 2001 | 22 | 3 |
| 2002 | 18 | 27 |
| 2003 | 20 | 18 |
| 2004 | 21 | 42 |
| 2005 | 13 | 48 |
| 2006 | 12 | 42 |
| 2007 | 27 | 76 |
| 2008 | 33 | 60 |
| 2009 | 21 | 48 |
| 2010 | 33 | 58 |
| 2011 | 35 | 62 |
| 2012 | 34 | 81 |
| 2013 | 78 | 85 |
| 2014 | 72 | 92 |
| 2015 | 73 | 86 |
| 2016 | 78 | 133 |
| 2017 | 108 | 260 |
| 2018 | 135 | 308 |
| 2019 | 239 | 356 |
| 2020 | 264 | 409 |
| 2021 | 271 | 409 |
| 2022 | 312 | 344 |
| 2023 | 303 | 381 |
| 2024 | 324 | 361 |
| 2025 | 256 | 323 |
| 2026 | 158 | 226 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A47L 9/2836Characterised by the parts which are controlled1,722
- A47L 9/2805Parameters or conditions being sensed1,565
- A47L 9/2868Arrangements for power supply of vacuum cleaners or the accessories thereof1,226
- A47L 9/2857User input or output elements for control1,173
- A47L 9/2894Details related to signal transmission in suction cleaners621
- A47L 9/2889Safety or protection devices or systems474
- A47L 9/30Arrangement of illuminating devices323
Recent patents
- 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 system notifying state of dust collection part and operating method of vacuum cleaner system6 Oct 2026US 12,751,592 B2Samsung Electronics Co., Ltd.
- Dust collection bin and cleaning apparatus comprising same29 Sep 2026US 12,745,883 B2Samsung Electronics Co., Ltd.
- Method and system for controlling cleaning robot29 Sep 2026US 12,745,884 B2Samsung Electronics 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
- 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
- Mobile robots and their control system575US 6,389,329 B12002
- Autonomous floor-cleaning robot453US 6,883,201 B2iRobot Corporation · 2005
- Automatic machine and device for floor dusting439US 5,787,545 A1998