B66B 5/288
With maintenance features
Official title: {with maintenance features (if not incorporated in the buffer B66B5/0087)}
B66B5/288 (With maintenance features) appears on 15 US grants and 19 published applications in this corpus.
Search patents in B66B- Granted patents
- 15
- Published applications
- 19
- Assignees
- 10
- Inventors
- 40
- Latest grant
- 27 Jun 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 4 | 3 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 4 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Elevator buffering device and elevator system27 Jun 2023US 11,685,632 B2Otis Elevator Company
- Hydraulic buffer energy storage device and system for over-discharged hoist skip in vertical shaft14 Mar 2023US 11,603,291 B2Foshan University
- Elevator device21 Jun 2022US 11,365,090 B2Mitsubishi Electric Corporation
- Buffer cap for elevator26 Oct 2021US 11,155,441 B2Mitsubishi Electric Corporation
- Elevator system hoistway access control22 Jun 2021US 11,040,853 B2Otis Elevator Company
- Pit buffer stand, elevator system and method of using the pit buffer stand for maintaining an elevator system18 Jun 2026US 2026/0167457 A1Otis Elevator Company
- Hydraulic buffer energy storage device and system for over-discharged hoist skip in vertical shaft12 Jan 2023US 2023/0012221 A1Foshan University
- Elevator buffering device and elevator system28 Oct 2021US 2021/0331895 A1Otis Elevator Company
- Buffer cap for elevator9 Sep 2021US 2021/0276828 A1Mitsubishi Electric Corporation
- Elevator device14 Mar 2019US 2019/0077633 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Elevator without a machine room19US 6,691,833 B1Inventio AG · 2004
- Safety arrangement for a hoist18US 6,736,242 B2Alimak AB · 2004
- Safety arrangements for elevators and methods for monitoring safety of elevator systems14US 8,261,885 B2Kone Corporation · 2012
- Elevator installation with a buffer for creating a zone of protection in an elevator installation and a method of creating a zone of protection8US 7,077,243 B2Inventio AG · 2006
- Elevator system which controls a value of overspeed4US 8,177,035 B2Mitsubishi Electric Corporation · 2012