B66B 5/12
In case of rope or cable slack
Official title: in case of rope or cable slack
B66B5/12 (In case of rope or cable slack) appears on 57 US grants and 64 published applications in this corpus.
Search patents in B66B- Granted patents
- 57
- Published applications
- 64
- Assignees
- 24
- Inventors
- 138
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 3 |
| 2013 | 1 | 3 |
| 2014 | 2 | 2 |
| 2015 | 0 | 7 |
| 2016 | 4 | 3 |
| 2017 | 3 | 4 |
| 2018 | 9 | 3 |
| 2019 | 5 | 6 |
| 2020 | 0 | 7 |
| 2021 | 5 | 9 |
| 2022 | 7 | 2 |
| 2023 | 1 | 2 |
| 2024 | 6 | 0 |
| 2025 | 4 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Slack condition monitoring system for an elevator suspension member14 Jul 2026US 12,679,696 B1TK Elevator Corporation
- Building facility vibration measurement device and management system5 May 2026US 12,617,652 B2Mitsubishi Electric Building Solutions Corporation
- Elevator control device2 Dec 2025US 12,486,143 B2Mitsubishi Electric Corporation
- Method and an elevator system for defining an elongation of an elevator car suspension device23 Sep 2025US 12,421,081 B2Kone Corporation
- Vibration damping device and elevator apparatus18 Feb 2025US 12,227,391 B2Mitsubishi Electric Corporation
- Elevator Traction Media Monitoring1 Oct 2026US 2026/0296833 A1Inventio AG
- Elevator safety control device, method for elevator safety control and elevator system15 Jan 2026US 2026/0015205 A1Otis Elevator Company
- Tension adjustment method for an elevator27 Nov 2025US 2025/0361118 A1Mitsubishi Electric Building Solutions Corporation
- Clearance measurement device for counterweight of elevator10 Jul 2025US 2025/0223133 A1Mitsubishi Electric Corporation
- System and method for measuring tension member elongation24 Apr 2025US 2025/0128913 A1Otis Elevator Company
Most cited
By later US patents
- Elevator rope slip detector and elevator system13US 7,578,373 B2Mitsubishi Denki Kabushiki Kaisha · 2009
- Slack rope detecting apparatus10US 4,467,895 ACrucible Society Anonyme · 1984
- Elevator installation with car and counterweight7US 9,309,091 B2Inventio AG · 2016
- Method and apparatus for checking states in an elevator installation7US 9,327,941 B2Inventio AG · 2016
- Safety arrangement for a hoist6US 10,099,904 B12018