B66B 23/12
Steps
B66B23/12 (Steps) appears on 163 US grants and 103 published applications in this corpus.
Search patents in B66B- Granted patents
- 163
- Published applications
- 103
- Assignees
- 44
- Inventors
- 273
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 2 |
| 2003 | 3 | 3 |
| 2004 | 0 | 5 |
| 2005 | 4 | 4 |
| 2006 | 3 | 5 |
| 2007 | 5 | 5 |
| 2008 | 4 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 6 |
| 2011 | 0 | 3 |
| 2012 | 6 | 3 |
| 2013 | 4 | 2 |
| 2014 | 2 | 3 |
| 2015 | 3 | 8 |
| 2016 | 7 | 9 |
| 2017 | 11 | 9 |
| 2018 | 5 | 9 |
| 2019 | 10 | 5 |
| 2020 | 6 | 5 |
| 2021 | 6 | 8 |
| 2022 | 3 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Assembled passenger conveying system, method of assembling the same, and modularized device8 Sep 2026US 12,729,098 B2Otis Elevator Company
- Escalator device21 May 2024US 11,987,473 B2Otis Elevator Company
- Escalator with distributed state sensors4 Jul 2023US 11,691,853 B2Otis Elevator Company
- Passenger conveyor and guide shoe for passenger conveyor23 May 2023US 11,655,125 B2Mitsubishi Electric Corporation
- Belt-driven escalator29 Mar 2022US 11,286,135 B2Otis Elevator Company
- Step element for a system for conveying people, and pressure die-casting tool for a step element24 Sep 2026US 2026/0285646 A1Inventio AG
- Self-locking structure of threaded connection3 Jul 2025US 2025/0215920 A1TK Elevator Innovation and Operations GmbH
- Bearing positioning structure without radial interference fit26 Jun 2025US 2025/0207631 A1TK Elevator Innovation and Operations GmbH
- Step of passenger conveyor and passenger conveyor12 Jun 2025US 2025/0187879 A1Otis Elevator Company
- Assembled passenger conveying system, method of assembling the same, and modularized device22 Aug 2024US 2024/0279028 A1Otis Elevator Company
Most cited
By later US patents
- Step for escalators56US 6,543,599 B2Georg Fischer Mossner GmbH · 2003
- Method and apparatus for entrapment prevention and lateral guidance in passenger conveyor systems35US 4,519,490 A1985
- Escalator25US 4,681,207 AMitsubishi Denki Kabushiki Kaisha · 1987
- Escalator/people mover bearing25US 5,072,821 AOtis Elevator Company · 1991
- Method and apparatus for entrapment prevention and lateral guidance in passenger conveyor systems24US 4,413,719 A1983