A47L 7/0023
Recovery tanks
Official title: {Recovery tanks (for cleaning machines A47L11/4013)}
A47L7/0023 (Recovery tanks) appears on 537 US grants and 469 published applications in this corpus.
Search patents in A47L- Granted patents
- 537
- Published applications
- 469
- Assignees
- 174
- Inventors
- 872
- 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 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 16 | 0 |
| 1990 | 10 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 22 | 0 |
| 2000 | 23 | 0 |
| 2001 | 18 | 8 |
| 2002 | 21 | 15 |
| 2003 | 20 | 5 |
| 2004 | 8 | 13 |
| 2005 | 6 | 15 |
| 2006 | 4 | 18 |
| 2007 | 10 | 17 |
| 2008 | 10 | 17 |
| 2009 | 8 | 11 |
| 2010 | 13 | 10 |
| 2011 | 7 | 5 |
| 2012 | 7 | 6 |
| 2013 | 11 | 6 |
| 2014 | 6 | 12 |
| 2015 | 11 | 21 |
| 2016 | 6 | 12 |
| 2017 | 15 | 19 |
| 2018 | 14 | 9 |
| 2019 | 12 | 40 |
| 2020 | 24 | 19 |
| 2021 | 18 | 27 |
| 2022 | 23 | 29 |
| 2023 | 22 | 41 |
| 2024 | 34 | 34 |
| 2025 | 22 | 31 |
| 2026 | 12 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- Surface cleaning apparatus11 Aug 2026US 12,702,260 B2BISSELL Inc.
- 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.)
- Floor cleaner with a low power mode1 Oct 2026US 2026/0294193 A1Techtronic Floor Care Technology Limited
- Surface cleaning apparatus24 Sep 2026US 2026/0283435 A1Omachron Intellectual Property Inc.
- Animal cleaning device17 Sep 2026US 2026/0271877 A1Divia La Penna Design Studio Inc.
- Wet cleaning apparatus and method17 Sep 2026US 2026/0272239 A1Versuni Holding B.V.
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