A47L 1/00
Cleaning windows
A47L1/00 (Cleaning windows) appears on 723 US grants and 634 published applications in this corpus.
Search patents in A47L- Granted patents
- 723
- Published applications
- 634
- Assignees
- 281
- Inventors
- 1,235
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 10 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 11 | 0 |
| 1989 | 13 | 0 |
| 1990 | 17 | 0 |
| 1991 | 8 | 0 |
| 1992 | 11 | 0 |
| 1993 | 12 | 0 |
| 1994 | 18 | 0 |
| 1995 | 12 | 0 |
| 1996 | 13 | 0 |
| 1997 | 16 | 0 |
| 1998 | 23 | 0 |
| 1999 | 25 | 0 |
| 2000 | 24 | 0 |
| 2001 | 21 | 3 |
| 2002 | 8 | 23 |
| 2003 | 21 | 24 |
| 2004 | 25 | 38 |
| 2005 | 13 | 22 |
| 2006 | 15 | 37 |
| 2007 | 13 | 18 |
| 2008 | 8 | 16 |
| 2009 | 9 | 15 |
| 2010 | 9 | 13 |
| 2011 | 11 | 20 |
| 2012 | 12 | 18 |
| 2013 | 9 | 28 |
| 2014 | 13 | 18 |
| 2015 | 29 | 29 |
| 2016 | 19 | 34 |
| 2017 | 13 | 33 |
| 2018 | 25 | 36 |
| 2019 | 34 | 33 |
| 2020 | 33 | 32 |
| 2021 | 18 | 26 |
| 2022 | 27 | 32 |
| 2023 | 16 | 19 |
| 2024 | 17 | 29 |
| 2025 | 18 | 26 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Window washing systems and methods4 Aug 2026US 12,697,003 B2Mirraclear LLC
- Squeegee with selectable rotation mode28 Jul 2026US 12,690,742 B2IP Cleaning S.R.L.
- Window cleaning device2 Jun 2026US 12,642,400 B2Tyroler Ltd.
- Sports towel with integral squeegee wiping surface5 May 2026US 12,617,002 B2
- Demolishing of glazing at a distance24 Feb 2026US 12,558,578 B2
- Hand carryable surface cleaning apparatus24 Sep 2026US 2026/0283417 A1Omachron Intellectual Property Inc.
- Window cleaning machine having double rolling brushes20 Aug 2026US 2026/0240380 A1Dongguan Enjoy Intelligent Technology Co., Ltd
- Window cleaning machine9 Jul 2026US 2026/0192343 A1Hobot Technology Inc.
- Automatic cleaning apparatus2 Jul 2026US 2026/0182805 A1Beijing Roborock Technology Co., Ltd.
- Cleaning device and preparation method thereof18 Jun 2026US 2026/0165553 A1Shenzhen Hongjiantou Technology Co., Ltd.
Most cited
By later US patents
- Elastic laminate web208US 6,830,800 B2The Procter & Gamble Company · 2004
- Applications for laminate web187US 6,878,433 B2The Procter & Gamble Company · 2005
- Laminate web comprising an apertured layer and method for manufacturing thereof178US 7,037,569 B2The Procter & Gamble Company · 2006
- User-activatible substance delivery system167US 6,863,960 B2The Procter & Gamble Company · 2005
- Handheld extraction cleaner160US 6,125,498 ABISSELL Homecare, Inc. · 2000