A47L 11/305
The tools being disc brushes
Official title: {the tools being disc brushes}
A47L11/305 (The tools being disc brushes) appears on 164 US grants and 196 published applications in this corpus.
Search patents in A47L- Granted patents
- 164
- Published applications
- 196
- Assignees
- 78
- Inventors
- 364
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 1 |
| 2002 | 0 | 4 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 6 |
| 2006 | 2 | 2 |
| 2007 | 3 | 3 |
| 2008 | 0 | 2 |
| 2009 | 1 | 7 |
| 2010 | 3 | 4 |
| 2011 | 4 | 2 |
| 2012 | 4 | 3 |
| 2013 | 5 | 3 |
| 2014 | 2 | 4 |
| 2015 | 4 | 9 |
| 2016 | 4 | 9 |
| 2017 | 5 | 12 |
| 2018 | 9 | 7 |
| 2019 | 8 | 18 |
| 2020 | 9 | 8 |
| 2021 | 11 | 15 |
| 2022 | 9 | 17 |
| 2023 | 11 | 10 |
| 2024 | 8 | 20 |
| 2025 | 7 | 15 |
| 2026 | 7 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Disc brush alignment30 Jul 2026US 2026/0215641 A1Nilfisk A/S
Most cited
By later US patents
- Mobile work robot system511US 5,959,423 AMinolta Co., Ltd. · 1999
- Automatic controlled cleaning machine361US 5,279,672 AWindsor Industries, Inc. · 1994
- Upright water extraction cleaning machine148US 6,041,472 ABISSELL Homecare, Inc. · 2000
- Automatic floor scrubber136US 5,369,838 AAdvance Machine Company · 1994
- Articulated floor scrubber100US 5,742,975 AWindsor Industries, Inc. · 1998