B66B 21/12
Of variable speed type
Official title: of variable speed type
B66B21/12 (Of variable speed type) appears on 46 US grants and 30 published applications in this corpus.
Search patents in B66B- Granted patents
- 46
- Published applications
- 30
- Assignees
- 25
- Inventors
- 76
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 7 |
| 2017 | 5 | 0 |
| 2018 | 2 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 2 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 1 | 3 |
| 2024 | 3 | 3 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Variable speed moving walkway systems5 Aug 2025US 12,378,097 B2Beltways Inc.
- Systems and methods for variable speed modular moving walkways8 Apr 2025US 12,269,710 B2Beltways Inc.
- Systems and methods for variable speed modular moving walkways10 Sep 2024US 12,084,312 B2Beltways Inc.
- Systems and methods for variable speed modular moving walkways12 Mar 2024US 11,926,506 B2Beltways Inc.
- System and methods for variable speed modular moving walkways27 Feb 2024US 11,912,532 B2Beltways Inc.
- Systems and methods for variable speed modular moving walkways29 Jan 2026US 2026/0028203 A1Beltways Inc.
- Systems and methods for variable speed modular moving walkways26 Jun 2025US 2025/0206572 A1Beltways Inc.
- Systems and methods for variable speed modular moving walkways26 Dec 2024US 2024/0425325 A1Beltways Inc.
- Systems and methods for variable speed modular moving walkways22 Feb 2024US 2024/0059528 A1Beltways Inc.
- Systems and methods for variable speed modular moving walkways22 Feb 2024US 2024/0059529 A1Beltways Inc.
Most cited
By later US patents
- Moving walkway47US 5,044,485 ALoderway Pty. Limited · 1991
- Accelerating walkway30US 4,232,776 ADean Research Corporation · 1980
- Endless conveyor with locally varying speeds20US 4,284,191 A1981
- Accelerating and decelerating moving walkway15US 3,939,959 AThe Boeing Company · 1976
- Transportation system utilizing a stretchable train of cars and stretchable bandconveyors13US 4,509,429 A1985