A47L 11/408
Means for supplying cleaning or surface treating agents
Official title: {Means for supplying cleaning or surface treating agents}
A47L11/408 (Means for supplying cleaning or surface treating agents) appears on 1,729 US grants and 1,876 published applications in this corpus.
Search patents in A47L- Granted patents
- 1,729
- Published applications
- 1,876
- Assignees
- 496
- Inventors
- 2,873
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 8 | 0 |
| 1978 | 17 | 0 |
| 1979 | 22 | 0 |
| 1980 | 22 | 0 |
| 1981 | 11 | 0 |
| 1982 | 19 | 0 |
| 1983 | 12 | 0 |
| 1984 | 11 | 0 |
| 1985 | 16 | 0 |
| 1986 | 8 | 0 |
| 1987 | 12 | 0 |
| 1988 | 11 | 0 |
| 1989 | 23 | 0 |
| 1990 | 26 | 0 |
| 1991 | 13 | 0 |
| 1992 | 16 | 0 |
| 1993 | 14 | 0 |
| 1994 | 12 | 0 |
| 1995 | 17 | 0 |
| 1996 | 17 | 0 |
| 1997 | 27 | 0 |
| 1998 | 27 | 0 |
| 1999 | 26 | 0 |
| 2000 | 42 | 0 |
| 2001 | 29 | 12 |
| 2002 | 23 | 25 |
| 2003 | 32 | 46 |
| 2004 | 14 | 30 |
| 2005 | 18 | 42 |
| 2006 | 21 | 57 |
| 2007 | 21 | 44 |
| 2008 | 16 | 29 |
| 2009 | 15 | 35 |
| 2010 | 36 | 26 |
| 2011 | 31 | 30 |
| 2012 | 19 | 36 |
| 2013 | 42 | 39 |
| 2014 | 32 | 60 |
| 2015 | 32 | 65 |
| 2016 | 48 | 66 |
| 2017 | 47 | 56 |
| 2018 | 51 | 79 |
| 2019 | 59 | 137 |
| 2020 | 87 | 118 |
| 2021 | 103 | 142 |
| 2022 | 112 | 140 |
| 2023 | 122 | 132 |
| 2024 | 119 | 197 |
| 2025 | 85 | 130 |
| 2026 | 70 | 103 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hair cutting assembly and cleaning apparatus6 Oct 2026US 12,751,588 B2Jiangsu Midea Cleaning Appliances Co., Ltd.
- Buffer stain applicator apparatus6 Oct 2026US 12,751,593 B1
- Cleaning apparatus6 Oct 2026US 12,751,596 B2Suzhou Eup Electric Co. Ltd.
- Cleaning apparatus29 Sep 2026US 12,745,885 B2Beijing Roborock Technology Co., Ltd.
- Extraction cleaner with cleaning and debris separation29 Sep 2026US 12,745,888 B1SharkNinja Operating LLC
- Residual-water-stain recovery method and apparatus, robot, and storage medium8 Oct 2026US 2026/0305897 A1Shenzhen Pudu Technology Co., Ltd.
- Extraction cleaner8 Oct 2026US 2026/0305903 A1BISSELL Inc.
- Stationary service appliance for a poly functional roaming device8 Oct 2026US 2026/0310224 A1AI Incorporated
- Floor cleaner with a low power mode1 Oct 2026US 2026/0294193 A1Techtronic Floor Care Technology Limited
- Cleaning robot24 Sep 2026US 2026/0283429 A1Beijing Roborock Technology Co., Ltd.
Most cited
By later US patents
- Mobile work robot system511US 5,959,423 AMinolta Co., Ltd. · 1999
- Autonomous surface cleaning robot for wet and dry cleaning295US 7,761,954 B2iRobot Corporation · 2010
- 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
- Running and working robot not susceptible to damage at a coupling unit between running unit and working unit218US 5,991,951 AMinolta Co., Ltd. · 1999