A47L 11/22
Floor-sweeping machines, hand-driven
A47L11/22 (Floor-sweeping machines, hand-driven) appears on 67 US grants and 72 published applications in this corpus.
Search patents in A47L- Granted patents
- 67
- Published applications
- 72
- Assignees
- 38
- Inventors
- 131
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 2 |
| 2004 | 2 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 1 |
| 2014 | 5 | 6 |
| 2015 | 4 | 2 |
| 2016 | 4 | 1 |
| 2017 | 4 | 2 |
| 2018 | 2 | 5 |
| 2019 | 1 | 7 |
| 2020 | 4 | 2 |
| 2021 | 5 | 14 |
| 2022 | 5 | 4 |
| 2023 | 3 | 1 |
| 2024 | 2 | 5 |
| 2025 | 3 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Cleaning apparatus6 May 2025US 12,290,220 B2SharkNinja Operating LLC
- Manual cleaning tool1 Apr 2025US 12,262,856 B2Nippon Seal Co., Ltd.
- Surface cleaning apparatus and tray4 Feb 2025US 12,213,633 B2BISSELL Inc.
- Floor cleaning apparatus with cleaning fluid delivery system21 May 2024US 11,986,136 B2BISSELL Inc.
- Vacuum cleaner20 Feb 2024US 11,903,550 B2BISSELL Inc.
Most cited
By later US patents
- Sweeper having at least one side brush154US 3,937,174 A1976
- Sweeping machine146US 6,324,714 B1Alfred Kaercher GmbH & Co. KG · 2001
- Sweeping machine132US 5,896,611 AIng. Haaga Werkzeugbau KG · 1999
- Cleaning apparatus with continuous action wiping and sweeping44US 6,859,976 B2S. C. Johnson & Son, Inc. · 2005
- Cleaning device43US 8,495,781 B2Carl Freudenberg KG · 2013