B66B 7/068
Cable weight compensating devices
Official title: {Cable weight compensating devices}
B66B7/068 (Cable weight compensating devices) appears on 77 US grants and 86 published applications in this corpus.
Search patents in B66B- Granted patents
- 77
- Published applications
- 86
- Assignees
- 25
- Inventors
- 175
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 2 | 3 |
| 2013 | 0 | 3 |
| 2014 | 0 | 2 |
| 2015 | 3 | 4 |
| 2016 | 2 | 8 |
| 2017 | 4 | 3 |
| 2018 | 6 | 12 |
| 2019 | 6 | 9 |
| 2020 | 3 | 8 |
| 2021 | 9 | 12 |
| 2022 | 12 | 1 |
| 2023 | 6 | 4 |
| 2024 | 3 | 1 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Elevator roping sway monitoring system19 May 2026US 12,630,393 B2Otis Elevator Company
- Hybrid compensation member23 Dec 2025US 12,503,338 B2Otis Elevator Company
- Elevator system with compensation chains having variable densities4 Nov 2025US 12,459,784 B2Otis Elevator Company
- Rope anchor and elevator arrangement and method for constructing elevator26 Aug 2025US 12,398,018 B2Kone Corporation
- Elevator system23 Jul 2024US 12,043,521 B2
- Construction elevator and method of extending compensating rope for construction elevator11 Jun 2026US 2026/0159356 A1Hitachi, Ltd.
- Elevator system with compensation chains having variable densities10 Jul 2025US 2025/0223134 A1Otis Elevator Company
- Elevator system2 Jan 2025US 2025/0002299 A1Kone Corporation
- Monitoring of elevator pit tie-down and compensation12 Dec 2024US 2024/0409362 A1Otis Elevator Company
- Elevator system12 Oct 2023US 2023/0322521 A1
Most cited
By later US patents
- Elevator compensating cable23US 4,716,989 ASiecor Corporation · 1988
- Hydraulic tie-down for elevators20US 4,522,285 AOtis Elevator Company · 1985
- Elevator cab and/or counterweight compensation rope hitch assembly18US 5,353,893 AOtis Elevator Company · 1994
- Elevator compensating cable17US 4,724,929 ASiecor Corporation · 1988
- Traction elevator17US 6,488,125 B1Kabushiki Kaisha Toshiba · 2002