A47C 1/03277
With bar or leaf springs
Official title: {with bar or leaf springs}
A47C1/03277 (With bar or leaf springs) appears on 203 US grants and 179 published applications in this corpus.
Search patents in A47C- Granted patents
- 203
- Published applications
- 179
- Assignees
- 68
- Inventors
- 222
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 4 |
| 2002 | 6 | 6 |
| 2003 | 5 | 5 |
| 2004 | 8 | 4 |
| 2005 | 4 | 4 |
| 2006 | 1 | 5 |
| 2007 | 3 | 4 |
| 2008 | 2 | 6 |
| 2009 | 5 | 7 |
| 2010 | 5 | 6 |
| 2011 | 6 | 9 |
| 2012 | 8 | 4 |
| 2013 | 3 | 6 |
| 2014 | 6 | 5 |
| 2015 | 7 | 11 |
| 2016 | 5 | 9 |
| 2017 | 10 | 2 |
| 2018 | 5 | 7 |
| 2019 | 6 | 6 |
| 2020 | 8 | 11 |
| 2021 | 12 | 17 |
| 2022 | 9 | 7 |
| 2023 | 10 | 8 |
| 2024 | 12 | 13 |
| 2025 | 6 | 8 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Oscillation mechanism for a chair or an armchair1 Sep 2026US 12,721,442 B2Donati S.p.A.
- Chair and components2 Jun 2026US 12,642,356 B2Formway Furniture Limited
- Chair tilt system with leaf spring26 May 2026US 12,635,796 B2Fellowes, Inc.
- Chair assembly12 May 2026US 12,622,523 B2Dick's Sporting Goods, Inc.
- Seating arrangement24 Mar 2026US 12,582,234 B2Steelcase Inc.
- Chair assembly16 Jul 2026US 2026/0198690 A1Dick's Sporting Goods, Inc.
- Chair28 May 2026US 2026/0144372 A1B4K GmbH
- Seating arrangement2 Apr 2026US 2026/0090644 A1Steelcase Inc.
- Chair8 Jan 2026US 2026/0007239 A1B4K GmbH
- Chair including a leaf spring in contact with a linkage to provide resistance to tilting of a backrest of the chair1 Jan 2026US 2026/0000206 A1
Most cited
By later US patents
- Chair shell with selective back stiffening145US 4,744,603 ASteelcase Inc. · 1988
- Integrated chair and control143US 4,776,633 ASteelcase Inc. · 1988
- Suspension mechanism for connecting chair backs and seats to a pedestal136US 4,911,501 AHarter Corporation · 1990
- Seating furniture119US 4,988,145 ARoeder GmbH Sitzmoebelwerke · 1991
- Chair118US 4,451,085 AWilkhahn & Hahne GmbH & Company · 1984