A47L 9/009
Carrying-vehicles
Official title: {Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles}
A47L9/009 (Carrying-vehicles) appears on 1,094 US grants and 1,380 published applications in this corpus.
Search patents in A47L- Granted patents
- 1,094
- Published applications
- 1,380
- Assignees
- 312
- Inventors
- 2,097
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 3 |
| 2002 | 11 | 19 |
| 2003 | 9 | 11 |
| 2004 | 9 | 28 |
| 2005 | 12 | 37 |
| 2006 | 17 | 27 |
| 2007 | 21 | 43 |
| 2008 | 15 | 43 |
| 2009 | 26 | 30 |
| 2010 | 14 | 39 |
| 2011 | 19 | 39 |
| 2012 | 14 | 51 |
| 2013 | 40 | 45 |
| 2014 | 61 | 46 |
| 2015 | 49 | 38 |
| 2016 | 37 | 50 |
| 2017 | 46 | 96 |
| 2018 | 44 | 91 |
| 2019 | 92 | 92 |
| 2020 | 76 | 93 |
| 2021 | 66 | 100 |
| 2022 | 66 | 96 |
| 2023 | 81 | 78 |
| 2024 | 79 | 79 |
| 2025 | 51 | 62 |
| 2026 | 39 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Suction cleaner and cleaning method20 Aug 2026US 2026/0240383 A1Robert Thomas Metall- und Elektrowerke
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Most cited
By later US patents
- Air flow-producing device, such as a vacuum cleaner or a blower1,158US 7,712,182 B2Milwaukee Electric Tool Corporation · 2010
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- Autonomous floor-cleaning robot453US 6,883,201 B2iRobot Corporation · 2005
- Method and system for robot localization and confinement445US 6,690,134 B1iRobot Corporation · 2004
- Autonomous robot auto-docking and energy management systems and methods436US 7,332,890 B2iRobot Corporation · 2008