A47L 11/4036
Parts or details of the surface treating tools
Official title: {Parts or details of the surface treating tools}
A47L11/4036 (Parts or details of the surface treating tools) appears on 2,429 US grants and 2,505 published applications in this corpus.
Search patents in A47L- Granted patents
- 2,429
- Published applications
- 2,505
- Assignees
- 680
- Inventors
- 3,925
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 17 | 0 |
| 1978 | 27 | 0 |
| 1979 | 26 | 0 |
| 1980 | 31 | 0 |
| 1981 | 27 | 0 |
| 1982 | 30 | 0 |
| 1983 | 25 | 0 |
| 1984 | 24 | 0 |
| 1985 | 23 | 0 |
| 1986 | 22 | 0 |
| 1987 | 23 | 0 |
| 1988 | 26 | 0 |
| 1989 | 33 | 0 |
| 1990 | 27 | 0 |
| 1991 | 21 | 0 |
| 1992 | 31 | 0 |
| 1993 | 25 | 0 |
| 1994 | 31 | 0 |
| 1995 | 36 | 0 |
| 1996 | 44 | 0 |
| 1997 | 41 | 0 |
| 1998 | 42 | 0 |
| 1999 | 44 | 0 |
| 2000 | 49 | 0 |
| 2001 | 40 | 12 |
| 2002 | 26 | 38 |
| 2003 | 36 | 33 |
| 2004 | 19 | 51 |
| 2005 | 17 | 63 |
| 2006 | 25 | 64 |
| 2007 | 31 | 44 |
| 2008 | 24 | 60 |
| 2009 | 27 | 52 |
| 2010 | 44 | 44 |
| 2011 | 38 | 47 |
| 2012 | 33 | 55 |
| 2013 | 68 | 70 |
| 2014 | 45 | 86 |
| 2015 | 56 | 84 |
| 2016 | 71 | 104 |
| 2017 | 67 | 93 |
| 2018 | 87 | 107 |
| 2019 | 97 | 165 |
| 2020 | 112 | 143 |
| 2021 | 127 | 208 |
| 2022 | 125 | 169 |
| 2023 | 131 | 176 |
| 2024 | 152 | 221 |
| 2025 | 98 | 172 |
| 2026 | 84 | 144 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Cleaning apparatus6 Oct 2026US 12,751,596 B2Suzhou Eup Electric Co. Ltd.
- AI robot cleaner and robot system having the same29 Sep 2026US 12,745,886 B2LG Electronics Inc.
- Surface cleaning system, surface cleaning device and control method thereof22 Sep 2026US 12,740,638 B2Tineco Intelligent Technology Co., Ltd.
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Residual-water-stain recovery method and apparatus, robot, and storage medium8 Oct 2026US 2026/0305897 A1Shenzhen Pudu Technology Co., Ltd.
- Method for controlling robot cleaner, and robot cleaner8 Oct 2026US 2026/0305901 A1Beijing Roborock Innovation Technology Co., Ltd.
- Base Station, and Robot Cleaning System and Control Method Therefor8 Oct 2026US 2026/0305904 A1Positec Power Tools (Suzhou) Co., Ltd.
- Roller Brush and Cleaning Device1 Oct 2026US 2026/0294090 A1Shenzhen Chenbei 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
- Cleaning robot276US 5,815,880 AMinolta Co., Ltd. · 1998
- 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