B66B 21/025
Of variable speed type
Official title: {of variable speed type}
B66B21/025 (Of variable speed type) appears on 14 US grants and 15 published applications in this corpus.
Search patents in B66B- Granted patents
- 14
- Published applications
- 15
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 2 | 3 |
| 2005 | 0 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 2 | 3 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Variable speed moving walkway systems5 Aug 2025US 12,378,097 B2Beltways Inc.
- Control system and control method for controlling start and stop of multiple passenger conveyors9 Aug 2022US 11,407,618 B2Kone Corporation
- Passenger conveyor31 Dec 2019US 10,519,007 B2Toshiba Elevator Kabushiki Kaisha
- Passenger conveyor26 Feb 2019US 10,214,390 B2Mitsubishi Electric Corporation
- System of hexagonal building units and escalators or moving walkways used therein28 Aug 2018US 10,059,568 B2
- Modernization escalator25 Jun 2026US 2026/0176076 A1Hanson Lift (Suzhou) Co., Ltd.
- Control system and control method for controlling start and stop of multiple passenger conveyors7 Oct 2021US 2021/0309494 A1Kone Corporation
- Variable speed moving walkway systems26 Mar 2020US 2020/0095097 A1Beltways Inc.
- Passenger conveyor5 Sep 2019US 2019/0270616 A1Toshiba Elevator Kabushiki Kaisha
- Conveyor control device21 Mar 2019US 2019/0084807 A1
Most cited
By later US patents
- Escalator with high speed inclined section14US 6,832,678 B2Mitsubishi Denki Kabushiki Kaisha · 2004
- Escalator with high speed inclined section5US 6,588,573 B1Mitsubishi Denki Kabushiki Kaisha · 2003
- Escalator with high speed inclinded section4US 6,591,959 B1Mitsubishi Denki Kabushiki Kaisha · 2003
- High-speed escalator for slope4US 6,796,416 B2Mitsubishi Denki Kabushiki Kaisha · 2004
- Sloped part high-speed escalator3US 7,104,386 B2Mitsubishi Denki Kabushiki Kaisha · 2006