B66B 23/026
With a drive or carrying sprocket wheel located at end portions
Official title: {with a drive or carrying sprocket wheel located at end portions}
B66B23/026 (With a drive or carrying sprocket wheel located at end portions) appears on 83 US grants and 60 published applications in this corpus.
Search patents in B66B- Granted patents
- 83
- Published applications
- 60
- Assignees
- 26
- Inventors
- 134
- Latest grant
- 26 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 2 | 4 |
| 2006 | 2 | 3 |
| 2007 | 2 | 3 |
| 2008 | 4 | 3 |
| 2009 | 3 | 2 |
| 2010 | 2 | 1 |
| 2011 | 2 | 3 |
| 2012 | 3 | 1 |
| 2013 | 2 | 3 |
| 2014 | 2 | 0 |
| 2015 | 0 | 4 |
| 2016 | 2 | 2 |
| 2017 | 2 | 4 |
| 2018 | 7 | 8 |
| 2019 | 7 | 7 |
| 2020 | 6 | 3 |
| 2021 | 5 | 3 |
| 2022 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Drive systems for people conveyors26 Jul 2022US 11,396,443 B2Otis Elevator Company
- Belt-driven escalator25 Jan 2022US 11,230,459 B2Otis Elevator Company
- Escalator31 Aug 2021US 11,104,551 B2
- Passenger conveyor15 Jun 2021US 11,034,552 B2Kone Corporation
- Belt-driven people conveyors8 Jun 2021US 11,027,946 B2Otis Elevator Company
- Belt-driven escalator30 Dec 2021US 2021/0403291 A1Otis Elevator Company
- Drive systems for people conveyors29 Jul 2021US 2021/0229958 A1Otis Elevator Company
- Escalator20 May 2021US 2021/0147186 A1
- Belt-driven people conveyors10 Dec 2020US 2020/0385238 A1Otis Elevator Company
- Run-in guide rail for escalators or moving walkways and passenger conveyance device having a run-in guide rail of this kind15 Oct 2020US 2020/0325004 A1Thyssenkrupp Elevator AG
Most cited
By later US patents
- Control apparatus for people mover systems24US 5,099,977 AHitachi, Ltd. · 1992
- Parallel drive for escalators or moving sidewalks22US 4,775,044 AO&K Orenstein & Koppel Aktiengesellschaft · 1988
- Noise reduced step chain sprocket22US 5,819,910 AOtis Elevator Company · 1998
- Conveyance system21US 7,442,139 B2Tsubakimoto Chain Co. · 2008
- Power transmission system for a passenger conveyor17US 5,224,580 AMontgomery Elevator Company · 1993