B66B 9/0823
Screw and nut
Official title: {Screw and nut}
B66B9/0823 (Screw and nut) appears on 9 US grants and 6 published applications in this corpus.
Search patents in B66B- Granted patents
- 9
- Published applications
- 6
- Assignees
- 3
- Inventors
- 14
- Latest grant
- 4 May 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Tower elevating assembly4 May 2021US 10,994,974 B2Homecare Products, Inc.
- Tower elevating assembly24 Mar 2020US 10,597,274 B1Homecare Products, Inc.
- Apparatus for ascending and descending stairs with a wheelchair18 Jul 2017US 9,708,162 B2
- Physiotherapeutic device11 May 1999US 5,901,813 A
- Stair lift10 Apr 1990US 4,915,573 A
- Improvements in or relating to stairlifts18 Aug 2022US 2022/0259011 A1
- Control Systems and Methods to Provide Sensor-Based Control3 Mar 2022US 2022/0063960 A1Evermore Systems Inc.
- Tower elevating assembly19 Aug 2021US 2021/0253410 A1Homecare Products, Inc.
- Tower elevating assembly16 Jul 2020US 2020/0223678 A1Homecare Products, Inc.
- Apparatus For Ascending And Descending Stairs With A Wheelchair11 Sep 2014US 2014/0251733 A1
Most cited
By later US patents