A47L 7/0038
With means for emptying the tanks
Official title: {with means for emptying the tanks}
A47L7/0038 (With means for emptying the tanks) appears on 349 US grants and 215 published applications in this corpus.
Search patents in A47L- Granted patents
- 349
- Published applications
- 215
- Assignees
- 96
- Inventors
- 467
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 14 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 18 | 0 |
| 2000 | 22 | 0 |
| 2001 | 18 | 8 |
| 2002 | 19 | 13 |
| 2003 | 18 | 5 |
| 2004 | 7 | 13 |
| 2005 | 6 | 12 |
| 2006 | 4 | 13 |
| 2007 | 9 | 12 |
| 2008 | 9 | 16 |
| 2009 | 7 | 7 |
| 2010 | 8 | 7 |
| 2011 | 6 | 2 |
| 2012 | 5 | 4 |
| 2013 | 10 | 5 |
| 2014 | 3 | 5 |
| 2015 | 5 | 4 |
| 2016 | 1 | 2 |
| 2017 | 5 | 11 |
| 2018 | 4 | 4 |
| 2019 | 6 | 23 |
| 2020 | 14 | 4 |
| 2021 | 3 | 5 |
| 2022 | 7 | 6 |
| 2023 | 9 | 11 |
| 2024 | 9 | 5 |
| 2025 | 8 | 10 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recovery tank22 Sep 2026US 12,740,683 B2SharkNinja Operating LLC
- Surface cleaning apparatus8 Sep 2026US 12,727,731 B2Omachron Intellectual Property Inc.
- Surface cleaning apparatus25 Aug 2026US 12,714,281 B2BISSELL Inc.
- Vacuum cleaner16 Dec 2025US 12,495,941 B2Lowe's Companies, Inc.
- Vacuum assembly18 Nov 2025US 12,471,745 B2Slurrymonster, LLC
- Surface cleaning apparatus24 Sep 2026US 2026/0283435 A1Omachron Intellectual Property Inc.
- Cleaning robot docking station and cleaning system with the cleaning robot docking station23 Jul 2026US 2026/0207022 A1TP-Link Systems Inc.
- Surface cleaning apparatus25 Jun 2026US 2026/0174304 A1Omachron Intellectual Property Inc.
- Surface cleaning apparatus25 Jun 2026US 2026/0174305 A1Omachron Intellectual Property Inc.
- Vacuum assembly18 Jun 2026US 2026/0165545 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Autonomous surface cleaning robot for wet and dry cleaning295US 7,761,954 B2iRobot Corporation · 2010
- Surface cleaning apparatus267US 8,146,201 B2G. B. D. Corp. · 2012
- Autonomous surface cleaning robot for wet and dry cleaning257US 7,389,156 B2iRobot Corporation · 2008
- Upright extraction cleaning machine240US 6,131,237 ABISSELL Homecare, Inc. · 2000
- Dual filter wet/dry hand-held vacuum cleaner227US 6,434,785 B1Headwaters Research & Development, Inc. · 2002