B66B 31/003
Accessories for escalators, or moving walkways: for cleaning steps or pallets
Official title: {for cleaning steps or pallets}
B66B31/003 (Accessories for escalators, or moving walkways: for cleaning steps or pallets) appears on 17 US grants and 21 published applications in this corpus.
Search patents in B66B- Granted patents
- 17
- Published applications
- 21
- Assignees
- 7
- Inventors
- 33
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 3 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Passenger transport system with a disinfecting device26 Aug 2025US 12,398,021 B2Inventio AG
- Handrail cleaning apparatus and method3 Sep 2019US 10,399,825 B1
- Service apparatus for an escalator or motorized stairway6 Nov 2018US 10,118,803 B2
- Method of cleaning steps of an escalator30 Jan 2018US 9,878,351 B2Renaelc, Inc.
- Cleaning apparatus for escalator rails5 Nov 2013US 8,573,385 B2Otis Elevator Company
- Automatic step cleaning device for passenger conveyor and passenger conveyor22 May 2025US 2025/0162839 A1Otis Elevator Company
- Cleaning system and cleaning method for passenger conveyor system27 Feb 2025US 2025/0066162 A1Otis Elevator Company
- Passenger transport system with a disinfecting device31 Oct 2024US 2024/0359951 A1Inventio AG
- Cleaning pad and cleaning implement9 Sep 2021US 2021/0276835 A1Renaelc, Inc.
- Escalator and Travelator Tread Cleaning Device and Method5 Nov 2020US 2020/0346900 A1
Most cited
By later US patents
- Device for cleaning grooved surfaces such as escalators or gangways15US 5,715,565 A1998
- Automated conveyor human transport deep cleaning system14US 8,376,124 B1Rosemor International Ltd. · 2013
- Escalator tread cleaning brush13US 4,514,872 A1985
- Apparatus for cleaning the steps of an escalator12US 5,042,641 AInventio AG · 1991
- Device for cleaning grooved surfaces of a moving transport9US 8,555,461 B22013