B66B 23/20
For handrails
Official title: for handrails
B66B23/20 (For handrails) appears on 22 US grants and 17 published applications in this corpus.
Search patents in B66B- Granted patents
- 22
- Published applications
- 17
- Assignees
- 6
- Inventors
- 53
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 1 |
| 2018 | 2 | 2 |
| 2019 | 3 | 3 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automatic transport device16 Sep 2025US 12,415,709 B2Otis Elevator Company
- Handrail tension monitoring device for a passenger transport system24 Jun 2025US 12,338,101 B2Inventio AG
- Continuously conveying passenger transport system, which can be walked on, having a charging possibility for mobile devices21 Jun 2022US 11,365,096 B2Inventio AG
- Plate conveyor21 Jun 2022US 11,365,097 B1Innova Patent GmbH
- People conveyor and method of determining power for driving a handrail element of a people conveyor23 Mar 2021US 10,954,103 B2Otis Elevator Company
- Handrail tensioning device and escalator installation module comprising the same22 Jan 2026US 2026/0021996 A1Kone Corporation
- Automatic transport device23 May 2024US 2024/0166473 A1Otis Elevator Company
- Handrail tension monitoring device for a passenger transport system9 Nov 2023US 2023/0356983 A1Inventio AG
- Plate conveyor30 Jun 2022US 2022/0204317 A1Innova Patent GmbH
- Continuously conveying passenger transport system, which can be walked on, having a charging possibility for mobile devices27 Aug 2020US 2020/0270101 A1Inventio AG
Most cited
By later US patents
- Escalator having handrail/drive-wheel self-adjusting traction mechanism14US 5,782,333 AOtis Elevator Company · 1998
- Moving handrail drive belt tensioning device11US 5,207,308 AOtis Elevator Company · 1993
- Automatically adjusting escalator handrail system9US 6,460,679 B1Otis Elevator Company · 2002
- Handrail roller bow adjustment8US 5,188,209 AOtis Elevator Company · 1993
- Tension release for passenger conveyor6US 5,544,730 AOtis Elevator Company · 1996