A47L 9/1436
Connecting plates
Official title: {Connecting plates, e.g. collars, end closures}
A47L9/1436 (Connecting plates) appears on 202 US grants and 231 published applications in this corpus.
Search patents in A47L- Granted patents
- 202
- Published applications
- 231
- Assignees
- 90
- Inventors
- 457
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 1 |
| 2003 | 2 | 3 |
| 2004 | 3 | 2 |
| 2005 | 1 | 4 |
| 2006 | 3 | 4 |
| 2007 | 1 | 4 |
| 2008 | 2 | 6 |
| 2009 | 2 | 5 |
| 2010 | 4 | 9 |
| 2011 | 5 | 5 |
| 2012 | 6 | 6 |
| 2013 | 6 | 8 |
| 2014 | 2 | 6 |
| 2015 | 4 | 4 |
| 2016 | 6 | 1 |
| 2017 | 2 | 9 |
| 2018 | 7 | 6 |
| 2019 | 9 | 20 |
| 2020 | 14 | 20 |
| 2021 | 23 | 26 |
| 2022 | 14 | 9 |
| 2023 | 9 | 11 |
| 2024 | 11 | 18 |
| 2025 | 6 | 26 |
| 2026 | 5 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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Most cited
By later US patents
- Vacuum cleaner and cyclone module therefor170US 8,062,398 B2BISSELL Homecare, Inc. · 2011
- Detector device for filter bags for vacuum cleaners114US 5,907,886 ABranofilter GmbH · 1999
- Disposable receptacle84US 4,948,266 A1990
- Evacuation station81US 9,931,007 B2iRobot Corporation · 2018
- Vacuum cleaner76US 4,545,794 ASanyo Electric Co., Ltd. · 1985