B66B 9/025
By screw-nut drives
Official title: {by screw-nut drives}
B66B9/025 (By screw-nut drives) appears on 40 US grants and 37 published applications in this corpus.
Search patents in B66B- Granted patents
- 40
- Published applications
- 37
- Assignees
- 25
- Inventors
- 69
- Latest grant
- 26 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 5 |
| 2008 | 3 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 3 |
| 2014 | 0 | 2 |
| 2015 | 1 | 3 |
| 2016 | 4 | 4 |
| 2017 | 3 | 3 |
| 2018 | 3 | 2 |
| 2019 | 2 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Elevating apparatus based on hetero-oriented, non-isometric, dual-spiral drive structure26 Mar 2024US 11,939,190 B2Jiangsu Zhiji Enviornmental Protection Technology Co., Ltd.
- Elevator control system2 Mar 2021US 10,934,130 B2Otis Elevator Company
- Magnetic elevator drive member and method of manufacture10 Mar 2020US 10,587,180 B2Otis Elevator Company
- Lateral transfer station for elevator having a magnetic screw propulsion system17 Dec 2019US 10,508,004 B2Otis Elevator Company
- Magnetic elevator drive member and method of manufacture26 Feb 2019US 10,214,387 B2Otis Elevator Company
- Handling system12 Dec 2024US 2024/0410454 A1
- Distributed Screw and Nut Drive Systems with Synchronized Motors for Lifts23 May 2024US 2024/0166470 A1
- Elevating apparatus based on hetero-oriented, non-isometric, dual-spiral drive structure20 Oct 2022US 2022/0332544 A1Jiangsu Zhiji Environmental Protection Technology Co., Ltd.
- Lifting assembly, jump elevator and jumping method11 Jun 2020US 2020/0180912 A1Otis Elevator Company
- Magnetic elevator drive member and method of manufacture15 Nov 2018US 2018/0330858 A1Otis Elevator Company
Most cited
By later US patents
- Platform lift29US 4,600,085 A1986
- Fail-safe motor-driven cylinder for lifting apparatus29US 4,635,491 AFuji Electric Co., Ltd. · 1987
- Self-supporting and self-contained elevator21US 4,287,967 ASanscord Australia Pty. Limited · 1981
- Elevator device20US 4,324,317 A1982
- Cableless cage elevator15US 4,051,923 A1977