A47L 9/2889
Safety or protection devices or systems
Official title: {Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user}
A47L9/2889 (Safety or protection devices or systems) appears on 474 US grants and 524 published applications in this corpus.
Search patents in A47L- Granted patents
- 474
- Published applications
- 524
- Assignees
- 194
- Inventors
- 1,118
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 11 | 2 |
| 2002 | 9 | 9 |
| 2003 | 9 | 5 |
| 2004 | 8 | 19 |
| 2005 | 4 | 24 |
| 2006 | 4 | 13 |
| 2007 | 10 | 22 |
| 2008 | 15 | 18 |
| 2009 | 6 | 12 |
| 2010 | 10 | 25 |
| 2011 | 11 | 17 |
| 2012 | 10 | 12 |
| 2013 | 31 | 17 |
| 2014 | 17 | 9 |
| 2015 | 11 | 11 |
| 2016 | 10 | 10 |
| 2017 | 14 | 20 |
| 2018 | 11 | 30 |
| 2019 | 19 | 40 |
| 2020 | 26 | 33 |
| 2021 | 19 | 36 |
| 2022 | 33 | 24 |
| 2023 | 21 | 28 |
| 2024 | 28 | 37 |
| 2025 | 25 | 33 |
| 2026 | 12 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Motorized suction head with steam dispensing device22 Sep 2026US 12,740,678 B2New Ermes Europe S.p.A.
- Method for identifying brush type, cleaning device and storage medium15 Sep 2026US 12,733,783 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Cordless vacuum cleaner adopting overheating protection method15 Sep 2026US 12,733,784 B2Samsung Electronics Co., Ltd.
- System and method for cleaning a space using an autonomous cleaning robot2 Jun 2026US 12,642,406 B1King Saud University
- Surface cleaner including pump cooling2 Jun 2026US 12,642,414 B2Techtronic Floor Care Technology Limited
- Electromechanical apparatus, system for regenerating such an apparatus and corresponding method10 Sep 2026US 2026/0268286 A1Deglace
- Ventilation and Particulate Matter Removal System20 Aug 2026US 2026/0240381 A1
- Method for determining an initial filter-loading value of an air-moving device9 Jul 2026US 2026/0191383 A1Dyson Technology Limited
- Cleaning robot and method for performing task thereof9 Jul 2026US 2026/0192466 A1Samsung Electroniics Co., Ltd.
- Electrostatic discharge mitigation of vacuum cleaners18 Jun 2026US 2026/0165548 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Autonomous robot auto-docking and energy management systems and methods436US 7,332,890 B2iRobot Corporation · 2008
- Docking system for a self-propelled working tool360US 6,525,509 B1Aktiebolaget Electrolux · 2003
- Robotic vacuum with removable portable vacuum and semi-automated environment mapping281US 7,113,847 B2Royal Appliance Mfg. Co. · 2006
- Robotic floor cleaning device268US 6,605,156 B1Dyson Limited · 2003
- Debris sensor for cleaning apparatus246US 6,956,348 B2iRobot Corporation · 2005