B66B 5/0087
Devices facilitating maintenance, repair or inspection tasks
Official title: {Devices facilitating maintenance, repair or inspection tasks (devices incorporated in the buffer B66B5/288; railings on top of the car B66B11/0226)}
B66B5/0087 (Devices facilitating maintenance, repair or inspection tasks) appears on 329 US grants and 482 published applications in this corpus.
Search patents in B66B- Granted patents
- 329
- Published applications
- 482
- Assignees
- 65
- Inventors
- 877
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 0 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 2 |
| 2007 | 3 | 5 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 2 | 5 |
| 2011 | 2 | 5 |
| 2012 | 3 | 8 |
| 2013 | 3 | 6 |
| 2014 | 5 | 9 |
| 2015 | 9 | 18 |
| 2016 | 6 | 14 |
| 2017 | 13 | 22 |
| 2018 | 12 | 73 |
| 2019 | 23 | 65 |
| 2020 | 36 | 48 |
| 2021 | 32 | 50 |
| 2022 | 31 | 36 |
| 2023 | 38 | 24 |
| 2024 | 26 | 21 |
| 2025 | 22 | 38 |
| 2026 | 29 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Elongation based monitoring of tension members22 Sep 2026US 12,741,848 B2Otis Elevator Company
- Carriage lifting/lowering device15 Sep 2026US 12,735,297 B2Murata Machinery, Ltd.
- Elevator car ceiling access system25 Aug 2026US 12,715,739 B2Otis Elevator Company
- Semiconductor module and life prediction system for semiconductor module11 Aug 2026US 12,703,602 B2Mitsubishi Electric Corporation
- Apparatus and method for testing elevator display unit and elevator system11 Aug 2026US 12,703,604 B2Otis Elevator Company
- Device and method for installing and adjusting pressure of roller guide, and elevator system24 Sep 2026US 2026/0285643 A1Otis Elevator Company
- Verification of an elevator system part or spare part17 Sep 2026US 2026/0274613 A1Kone Corporation
- Management system for elevators13 Aug 2026US 2026/0233970 A1Mitsubishi Electric Building Solutions Corporation
- Modular elevator systems and methods13 Aug 2026US 2026/0233973 A1Buildz, LLC
- Door control unit for an elevator system, method of maintaining an elevator system, and maintenance device for maintaining an elevator system16 Jul 2026US 2026/0200697 A1Inventio AG
Most cited
By later US patents
- Methods of servicing an elevator system96US 4,697,243 AWestinghouse Electric Corp. · 1987
- Programmable operating panel for an elevator car62US 5,679,934 AKone Corporation · 1997
- Method and apparatus for improving the servicing of an elevator system57US 4,512,442 AWestinghouse Electric Corp. · 1985
- Device and method for remote maintenance of an elevator56US 7,073,633 B2Inventio AG · 2006
- Elevator self-diagnostic control system54US 4,898,263 AMontgomery Elevator Company · 1990