A47L 9/2894
Details related to signal transmission in suction cleaners
Official title: {Details related to signal transmission in suction cleaners}
A47L9/2894 (Details related to signal transmission in suction cleaners) appears on 621 US grants and 720 published applications in this corpus.
Search patents in A47L- Granted patents
- 621
- Published applications
- 720
- Assignees
- 192
- Inventors
- 1,318
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 12 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 5 |
| 2003 | 4 | 4 |
| 2004 | 3 | 12 |
| 2005 | 8 | 13 |
| 2006 | 2 | 6 |
| 2007 | 3 | 22 |
| 2008 | 9 | 17 |
| 2009 | 5 | 12 |
| 2010 | 6 | 11 |
| 2011 | 4 | 13 |
| 2012 | 4 | 16 |
| 2013 | 20 | 11 |
| 2014 | 21 | 17 |
| 2015 | 21 | 10 |
| 2016 | 12 | 17 |
| 2017 | 20 | 58 |
| 2018 | 27 | 65 |
| 2019 | 43 | 43 |
| 2020 | 48 | 82 |
| 2021 | 41 | 82 |
| 2022 | 51 | 55 |
| 2023 | 59 | 59 |
| 2024 | 49 | 36 |
| 2025 | 44 | 29 |
| 2026 | 23 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Method and system for controlling cleaning robot29 Sep 2026US 12,745,884 B2Samsung Electronics Co., Ltd.
- SLAM robot and a paired application thereof15 Sep 2026US 12,736,962 B1AI Incorporated
- Environment maintenance system and weeder robot8 Sep 2026US 12,727,530 B2Pixart Imaging Inc.
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- System and method for controlling a motor at a constant rotations per minute (rpm)1 Oct 2026US 2026/0294194 A1Techtronic Floor Care Technology Limited
- Pool system with message diagnostics for pool cleaner1 Oct 2026US 2026/0294195 A1Zodiac Pool Care Europe
- Electromechanical apparatus, system for regenerating such an apparatus and corresponding method10 Sep 2026US 2026/0268286 A1Deglace
- Vacuum cleaner and control method therefor27 Aug 2026US 2026/0248335 A1LG Electronics Inc.
Most cited
By later US patents
- 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
- Autonomous robot auto-docking and energy management systems and methods436US 7,332,890 B2iRobot Corporation · 2008