A47L 11/4025
Means for emptying
Official title: {Means for emptying}
A47L11/4025 (Means for emptying) appears on 307 US grants and 358 published applications in this corpus.
Search patents in A47L- Granted patents
- 307
- Published applications
- 358
- Assignees
- 121
- Inventors
- 657
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 4 |
| 2005 | 1 | 3 |
| 2006 | 1 | 6 |
| 2007 | 0 | 4 |
| 2008 | 2 | 7 |
| 2009 | 1 | 3 |
| 2010 | 4 | 9 |
| 2011 | 5 | 3 |
| 2012 | 4 | 15 |
| 2013 | 13 | 8 |
| 2014 | 4 | 11 |
| 2015 | 3 | 5 |
| 2016 | 9 | 7 |
| 2017 | 9 | 10 |
| 2018 | 10 | 16 |
| 2019 | 13 | 24 |
| 2020 | 11 | 28 |
| 2021 | 27 | 40 |
| 2022 | 22 | 26 |
| 2023 | 32 | 26 |
| 2024 | 25 | 35 |
| 2025 | 13 | 34 |
| 2026 | 15 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Control of evacuation stations8 Sep 2026US 12,727,729 B2iRobot Corporation
- Hand-guided floor cleaning machine with a suction foot mount25 Aug 2026US 12,714,279 B2Hako GmbH
- Self-actuated cleaning head for an autonomous vacuum21 Jul 2026US 12,685,418 B2Matic Robots, Inc.
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Extraction cleaner8 Oct 2026US 2026/0305903 A1BISSELL Inc.
- Control method and apparatus for self-cleaning maintenance station, and device and medium13 Aug 2026US 2026/0232161 A1Beijing Roborock Innovation Technology Co., Ltd.
- Automatic water replenishment assembly and self-cleaning maintenance station6 Aug 2026US 2026/0224084 A1Beijing Roborock Technology Co., Ltd.
- Cleaning base station and cleaning system30 Jul 2026US 2026/0215645 A1Beijing Roborock Technology Co., Ltd.
Most cited
By later US patents
- Mobile surface cleaning machine201US 5,239,720 AAdvance Machine Company · 1993
- Cleaning machine200US 5,129,125 AKomatsu Zenoah Co. · 1992
- Floor and bounded surface sweeper machine170US 4,716,621 ADulevo S.p.A. · 1988
- Compact autonomous coverage robot163US 8,239,992 B2iRobot Corporation · 2012
- Cleaning robot roller processing156US 8,087,117 B2iRobot Corporation · 2012