B66B 11/0055
On the counterweight
Official title: {on the counterweight}
B66B11/0055 (On the counterweight) appears on 17 US grants and 10 published applications in this corpus.
Search patents in B66B- Granted patents
- 17
- Published applications
- 10
- Assignees
- 7
- Inventors
- 53
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Balancing apparatus and balancing system comprising same24 Jun 2025US 12,338,100 B2
- Elevator arrangement with multiple cars in the same shaft21 Apr 2020US 10,625,982 B2Kone Corporation
- Both-way movable body driving mechanism and elevator using the same20 Feb 2007US 7,178,637 B2Fujitec Co., Ltd.
- Power transmission system for elevator12 Sep 2006US 7,104,363 B2
- Elevator7 May 2002US 6,382,361 B1Hitachi, Ltd.
- Lift device and elevator27 Aug 2026US 2026/0250102 A1Inventio AG
- Balancing apparatus and balancing system comprising same3 Apr 2025US 2025/0108996 A1
- Counterweight Drive10 Nov 2022US 2022/0356047 A1
- Elevator system with a climbing counterweight23 Jun 2022US 2022/0194742 A1Otis Elevator Company
- Electrically autonomous elevator system10 May 2018US 2018/0127236 A1Otis Elevator Company
Most cited
By later US patents
- Flat linear motor driven elevator26US 5,203,432 AOtis Elevator Company · 1993
- Belt-climbing elevator having drive in counterweight22US 6,138,799 AOtis Elevator Company · 2000
- Elevator motor placed in the counterweight21US 5,435,417 AKone Corporation · 1995
- Elevator drive machine placed in the counterweight16US 5,573,084 AKone Corporation · 1996
- Linear motor elevator having hybrid roping and stationary primary15US 5,299,662 AOtis Elevator Company · 1994