A47L 9/0081
Means for exhaust-air diffusion
Official title: {Means for exhaust-air diffusion; Means for sound or vibration damping}
A47L9/0081 (Means for exhaust-air diffusion) appears on 377 US grants and 412 published applications in this corpus.
Search patents in A47L- Granted patents
- 377
- Published applications
- 412
- Assignees
- 160
- Inventors
- 835
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 6 |
| 2002 | 9 | 11 |
| 2003 | 6 | 5 |
| 2004 | 8 | 9 |
| 2005 | 4 | 20 |
| 2006 | 2 | 23 |
| 2007 | 10 | 20 |
| 2008 | 13 | 11 |
| 2009 | 14 | 13 |
| 2010 | 9 | 13 |
| 2011 | 15 | 9 |
| 2012 | 6 | 6 |
| 2013 | 7 | 15 |
| 2014 | 10 | 21 |
| 2015 | 18 | 10 |
| 2016 | 13 | 13 |
| 2017 | 12 | 30 |
| 2018 | 10 | 23 |
| 2019 | 23 | 19 |
| 2020 | 23 | 24 |
| 2021 | 18 | 10 |
| 2022 | 13 | 22 |
| 2023 | 12 | 21 |
| 2024 | 15 | 26 |
| 2025 | 14 | 19 |
| 2026 | 5 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Dirt separator system for a vacuum cleaner157US 7,882,593 B2AB Electrolux · 2011
- Low noise air blower113US 5,567,127 A1996
- Built-in vacuum cleaning system with improved acoustic damping design100US 4,938,309 AM.D. Manufacturing, Inc. · 1990
- Evacuation station98US 9,462,920 B1iRobot Corporation · 2016
- Vacuum cleaner85US 7,882,592 B2LG Electronics Inc. · 2011