A47C 3/22
With balancing device
Official title: with balancing device, e.g. by spring, by weight
A47C3/22 (With balancing device) appears on 35 US grants and 34 published applications in this corpus.
Search patents in A47C- Granted patents
- 35
- Published applications
- 34
- Assignees
- 23
- Inventors
- 64
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 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 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 3 |
| 2016 | 1 | 2 |
| 2017 | 2 | 3 |
| 2018 | 2 | 4 |
| 2019 | 5 | 2 |
| 2020 | 2 | 2 |
| 2021 | 4 | 5 |
| 2022 | 1 | 1 |
| 2023 | 4 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Orthopedic standing and walking aid4 Aug 2026US 12,697,269 B2Sitworxx O.G.
- Seating arrangement24 Mar 2026US 12,582,234 B2Steelcase Inc.
- Seating arrangement and method of construction28 Nov 2023US 11,825,955 B2Steelcase Inc.
- Modular sofa with adjustable seat28 Mar 2023US 11,612,253 B2Trica Inc.
- Multifunctional collapsible stool14 Feb 2023US 11,576,494 B1Yiwu Locyop Household Product Co., Ltd.
- Self Leveling Balancing System for Moveable Objects24 Sep 2026US 2026/0283359 A1
- Chair and furniture composition21 Nov 2024US 2024/0382001 A1
- Seating arrangement18 Jul 2024US 2024/0237826 A1Steelcase Inc.
- Multifunctional foldable stool23 Feb 2023US 2023/0054295 A1Yiwu Locyop Household Product Co., Ltd.
- Modular sofa with adjustable seat7 Apr 2022US 2022/0104627 A1Trica Inc.
Most cited
By later US patents
- Constant force generator mechanism and adjustable seat constructed therewith39US 4,387,876 AAdvanced Products Beer-Sheva Ltd. · 1983
- Bar stool36US 6,003,944 A1999
- Spring mounted seat with height adjustment33US 4,125,242 AMessrs. Willibald Grammer · 1978
- Vehicle seats32US 4,286,765 AUop LLC · 1981
- Seat suspension assembly28US 7,008,015 B22006