A47B 27/06
Balancing by means of springs
Official title: balancing by means of springs
A47B27/06 (Balancing by means of springs) appears on 9 US grants and 1 published applications in this corpus.
Search patents in A47B- Granted patents
- 9
- Published applications
- 1
- Assignees
- 7
- Inventors
- 11
- Latest grant
- 8 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 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 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Smoothly adjustable artboard8 Aug 2023US 11,717,081 B1DongGuan KINGEASY Hardware Technology CO., LTD
- Furniture piece with adjustable worksurface29 Aug 2017US 9,743,760 B1Teknion Limited
- Counterbalance mechanism19 Jan 1993US 5,180,136 AWeber Knapp Company
- Variable slant board28 Apr 1992US 5,107,774 A
- Anti-fail device for locking a drawing-board pillar against motion12 Aug 1986US 4,605,189 AAlpia S.A.
Most cited
By later US patents
- Desk for handicapped persons57US 4,383,486 ARol-Fol Table, Inc. · 1983
- Counterweight system45US 4,351,245 A1982
- Anti-fail device for locking a drawing-board pillar against motion31US 4,605,189 AAlpia S.A. · 1986
- Height adjustable table21US 4,156,391 AReppisch-Werke AG · 1979
- Counterbalance mechanism13US 5,180,136 AWeber Knapp Company · 1993