B66B 29/00
Safety devices of escalators or moving walkways
Official title: Safety devices of escalators or moving walkways (walkways of variable speed type B66B21/12; handrails of variable speed type B66B23/26)
B66B29/00 (Safety devices of escalators or moving walkways) appears on 287 US grants and 233 published applications in this corpus.
Search patents in B66B- Granted patents
- 287
- Published applications
- 233
- Assignees
- 80
- Inventors
- 539
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 13 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 0 |
| 2002 | 7 | 2 |
| 2003 | 7 | 10 |
| 2004 | 6 | 3 |
| 2005 | 5 | 4 |
| 2006 | 2 | 7 |
| 2007 | 4 | 7 |
| 2008 | 9 | 11 |
| 2009 | 6 | 7 |
| 2010 | 2 | 4 |
| 2011 | 3 | 6 |
| 2012 | 2 | 5 |
| 2013 | 8 | 7 |
| 2014 | 7 | 6 |
| 2015 | 6 | 6 |
| 2016 | 6 | 15 |
| 2017 | 9 | 12 |
| 2018 | 20 | 32 |
| 2019 | 28 | 12 |
| 2020 | 12 | 17 |
| 2021 | 13 | 14 |
| 2022 | 9 | 7 |
| 2023 | 6 | 8 |
| 2024 | 4 | 11 |
| 2025 | 3 | 17 |
| 2026 | 11 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Protection device during installation works on a passenger transport system1 Sep 2026US 12,722,943 B2Inventio AG
- Automatic conveyor device11 Aug 2026US 12,703,608 B2Otis Elevator Company
- Automatic conveyor device11 Aug 2026US 12,703,609 B2Otis Elevator Company
- Passenger conveyor system and anti-collision device for step and comb plate14 Jul 2026US 12,679,700 B2Otis Elevator Company
- Method and device for monitoring the travel operation of a person-transporting installation14 Jul 2026US 12,682,646 B2Inventio AG
- Escalator apparatus having a height-limiting device acting on step rollers, and use3 Sep 2026US 2026/0257893 A1TK Elevator Innovation and Operations GmbH
- Access control30 Jul 2026US 2026/0222221 A1Kone Corporation
- Method and device for monitoring the drive operation of a passenger conveyor system2 Jul 2026US 2026/0184541 A1Inventio AG
- Safety detection device and escalator or moving walkway incorporating the device11 Dec 2025US 2025/0376355 A1Otis Elevator Company
- Dynamic comb for conveyance systems for moving people or objects11 Sep 2025US 2025/0282579 A1Beltways Inc.
Most cited
By later US patents
- Moving walkway47US 5,044,485 ALoderway Pty. Limited · 1991
- Conveyor belt for persons45US 5,971,129 AInventio AG · 1999
- Electronic safety system for escalators41US 6,267,219 B1Otis Elevator Company · 2001
- Escalator31US 3,986,595 AMitsubishi Denki Kabushiki Kaisha · 1976
- Band transportation system29US 5,558,198 A1996