B66B 23/028
With separate drive chain or belt that engages directly the carrying surface
Official title: {with separate drive chain or belt that engages directly the carrying surface chain}
B66B23/028 (With separate drive chain or belt that engages directly the carrying surface) appears on 36 US grants and 35 published applications in this corpus.
Search patents in B66B- Granted patents
- 36
- Published applications
- 35
- Assignees
- 15
- Inventors
- 73
- Latest grant
- 8 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 3 |
| 2003 | 4 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 6 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 2 |
| 2010 | 1 | 2 |
| 2011 | 2 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 3 |
| 2018 | 3 | 4 |
| 2019 | 2 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Belt-driven people conveyors8 Jun 2021US 11,027,946 B2Otis Elevator Company
- Polymer jacket material blends with improved flame resistance23 Jun 2020US 10,689,516 B2Otis Elevator Company
- Moving walkway3 Mar 2020US 10,577,223 B2Otis Elevator Company
- Drive system for a people conveyor21 Jan 2020US 10,538,416 B2Otis Elevator Company
- Tread element for people conveyor comprising a cantilever arm4 Jun 2019US 10,308,482 B2Otis Elevator Company
- Belt-driven people conveyors10 Dec 2020US 2020/0385238 A1Otis Elevator Company
- Drive system for a people conveyor21 Nov 2019US 2019/0352138 A1Otis Elevator Company
- Moving walkway11 Jul 2019US 2019/0210842 A1Otis Elevator Company
- Passenger conveyor27 Dec 2018US 2018/0370771 A1Mitsubishi Electric Corporation
- Polymer jacket material blends with improved flame resistance25 Oct 2018US 2018/0305549 A1Otis Elevator Company
Most cited
By later US patents
- Conveyor device32US 6,427,823 B1Kabushiki Kaisha Toshiba · 2002
- Escalator25US 4,535,880 AWestinghouse Electric Corp. · 1985
- Belt drive assembly for a passenger conveyor21US 6,540,060 B1Otis Elevator Company · 2003
- Drive unit for an endless conveyor20US 4,082,173 AOtis Elevator Company · 1978
- Racetrack style passenger conveyor12US 6,640,957 B2Otis Elevator Company · 2003