A47L 9/182
Separating by passing the air over a liquid bath
Official title: {Separating by passing the air over a liquid bath (arrangement of cyclones A47L9/16)}
A47L9/182 (Separating by passing the air over a liquid bath) appears on 31 US grants and 19 published applications in this corpus.
Search patents in A47L- Granted patents
- 31
- Published applications
- 19
- Assignees
- 13
- Inventors
- 53
- Latest grant
- 31 Jan 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 4 |
| 2002 | 4 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 7 |
| 2013 | 0 | 0 |
| 2014 | 5 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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Most cited
By later US patents
- Ultra-filtration vacuum system72US 5,922,093 AMiracle Marketing Corporation · 1999
- Filtering system for cleaning air51US 5,908,493 A1999
- Vacuum cleaner construction39US 4,693,734 ARexair, Inc. · 1987
- Vacuum cleaner construction29US 4,640,697 ARexair, Inc. · 1987
- Vacuum cleaning apparatus25US 4,121,915 A1978