A47L
Domestic washing or cleaning
Official title: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
A47L (Domestic washing or cleaning) appears on 24,796 US grants and 26,041 published applications in this corpus.
Search patents in A47L- Granted patents
- 24,796
- Published applications
- 26,041
- Assignees
- 4,887
- Inventors
- 32,825
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 214 | 0 |
| 1977 | 153 | 0 |
| 1978 | 190 | 0 |
| 1979 | 156 | 0 |
| 1980 | 196 | 0 |
| 1981 | 164 | 0 |
| 1982 | 184 | 0 |
| 1983 | 148 | 0 |
| 1984 | 172 | 0 |
| 1985 | 186 | 0 |
| 1986 | 168 | 0 |
| 1987 | 230 | 0 |
| 1988 | 250 | 0 |
| 1989 | 307 | 0 |
| 1990 | 286 | 0 |
| 1991 | 296 | 0 |
| 1992 | 303 | 0 |
| 1993 | 275 | 0 |
| 1994 | 319 | 0 |
| 1995 | 334 | 0 |
| 1996 | 352 | 0 |
| 1997 | 306 | 0 |
| 1998 | 403 | 0 |
| 1999 | 465 | 0 |
| 2000 | 437 | 0 |
| 2001 | 379 | 138 |
| 2002 | 375 | 505 |
| 2003 | 442 | 591 |
| 2004 | 395 | 811 |
| 2005 | 325 | 917 |
| 2006 | 359 | 947 |
| 2007 | 448 | 898 |
| 2008 | 400 | 812 |
| 2009 | 414 | 843 |
| 2010 | 570 | 858 |
| 2011 | 531 | 853 |
| 2012 | 548 | 887 |
| 2013 | 695 | 876 |
| 2014 | 788 | 997 |
| 2015 | 789 | 955 |
| 2016 | 843 | 1088 |
| 2017 | 841 | 1205 |
| 2018 | 932 | 1324 |
| 2019 | 1084 | 1391 |
| 2020 | 1144 | 1424 |
| 2021 | 1035 | 1446 |
| 2022 | 1147 | 1313 |
| 2023 | 1060 | 1367 |
| 2024 | 1080 | 1380 |
| 2025 | 980 | 1181 |
| 2026 | 698 | 1034 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- A47L 9/00Details or accessories of suction cleaners9,006
- A47L 15/00Washing or rinsing machines for crockery or tableware5,326
- A47L 11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings4,938
- A47L 13/00Implements for cleaning floors, carpets, furniture, walls, or wall coverings4,702
- A47L 5/00Structural features of suction cleaners4,379
- A47L 2201/00Robotic cleaning machines, i.e. with automatic control of the travelling movement orIndexing code2,885
- A47L 7/00Suction cleaners adapted for additional purposes1,681
- A47L 2501/00Output in controlling method of washing or rinsing machines for crockery orIndexing code1,136
All 19 main groupsShow fewer
- A47L 2401/00Automatic detection in controlling methods of washing or rinsing machines for crockeryIndexing code1,017
- A47L 23/00Cleaning footwear835
- A47L 1/00Cleaning windows723
- A47L 25/00Domestic cleaning devices not provided for in other groups of this subclass582
- A47L 17/00Apparatus or implements used in manual washing or cleaning of crockery, table-ware410
- A47L 2601/00Washing methods characterised by the use of a particular treatmentIndexing code226
- A47L 19/00Drying devices for crockery or table-ware202
- A47L 2301/00Manual input in controlling methods of washing or rinsing machines for crockeryIndexing code185
- A47L 4/00Cleaning window shades, window screens, venetian blinds81
- A47L 21/00Polishing of table-ware34
- A47L 3/00Safety devices for use in window-cleaning24
Recent patents
- Central vacuum system and inlet valves therefor6 Oct 2026US 12,751,587 B2H-P Products, Inc.
- Hair cutting assembly and cleaning apparatus6 Oct 2026US 12,751,588 B2Jiangsu Midea Cleaning Appliances Co., Ltd.
- Debris bin6 Oct 2026US 12,751,589 B2Shenzhen Silver Star Intelligent Group Co., Ltd.
- Cleaning system and cleaning method6 Oct 2026US 12,751,590 B2Pixart Imaging Inc.
- Cleaning apparatus, and housing and sensor used therefor6 Oct 2026US 12,751,591 B2Beijing Roborock Technology Co., Ltd.
- Vacuum cleaner with two turbines, and operating method for same8 Oct 2026US 2026/0305892 A1Hilti Aktiengesellschaft
- Surface cleaning apparatus and docking station usable therewith8 Oct 2026US 2026/0305893 A1Omachron Intellectual Property Inc.
- Waste tape recovery device8 Oct 2026US 2026/0305894 A1Fuji Corporation
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Mobile cleaning robot with variable cleaning features8 Oct 2026US 2026/0305896 A1iRobot Corporation
Most cited
By later US patents
- Flexible plastics vacuum cleaner core1,473US 5,778,939 ADual Voltage Co. Ltd. · 1998
- Electric tool powered by a plurality of battery packs and adapter therefor1,253US 8,813,866 B2Makita Corporation · 2014
- Air flow-producing device, such as a vacuum cleaner or a blower1,158US 7,712,182 B2Milwaukee Electric Tool Corporation · 2010
- Articulated tubular conduit arm for sucking gaseous fluids1,149US 4,540,202 A1985
- Foam substrate and micropackaged active ingredient particle composite dispensing materials1,078US 4,828,542 ATwin Rivers Engineering · 1989