A47C 7/46
With special
Official title: with special, e.g. adjustable {, lumbar region support} profile; "Ackerblom" profile chairs
A47C7/46 (With special) appears on 1,069 US grants and 863 published applications in this corpus.
Search patents in A47C- Granted patents
- 1,069
- Published applications
- 863
- Assignees
- 399
- Inventors
- 1,559
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 9 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 21 | 0 |
| 1986 | 18 | 0 |
| 1987 | 17 | 0 |
| 1988 | 13 | 0 |
| 1989 | 14 | 0 |
| 1990 | 18 | 0 |
| 1991 | 14 | 0 |
| 1992 | 11 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 13 | 0 |
| 1996 | 20 | 0 |
| 1997 | 13 | 0 |
| 1998 | 20 | 0 |
| 1999 | 21 | 0 |
| 2000 | 27 | 0 |
| 2001 | 18 | 3 |
| 2002 | 29 | 29 |
| 2003 | 23 | 30 |
| 2004 | 32 | 30 |
| 2005 | 28 | 41 |
| 2006 | 24 | 26 |
| 2007 | 20 | 25 |
| 2008 | 29 | 25 |
| 2009 | 20 | 30 |
| 2010 | 23 | 19 |
| 2011 | 20 | 23 |
| 2012 | 18 | 26 |
| 2013 | 18 | 23 |
| 2014 | 17 | 45 |
| 2015 | 44 | 48 |
| 2016 | 33 | 33 |
| 2017 | 33 | 52 |
| 2018 | 37 | 48 |
| 2019 | 55 | 49 |
| 2020 | 52 | 48 |
| 2021 | 38 | 41 |
| 2022 | 39 | 35 |
| 2023 | 41 | 38 |
| 2024 | 27 | 43 |
| 2025 | 25 | 23 |
| 2026 | 19 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Chair cover6 Oct 2026US 12,751,550 B2Secretlab SG PTE. LTD.
- Functional chair for posture correction and lumbar traction6 Oct 2026US 12,751,885 B2
- Trapped tab attachment assemblies and methods6 Oct 2026US 12,752,685 B2Lear Corporation
- Pneumatic bladder arrangement for neckrest29 Sep 2026US 12,746,865 B2Schukra Berndorf GmbH
- Adaptable seat22 Sep 2026US 12,740,646 B2Omp S.R.L.
- Chair1 Oct 2026US 2026/0294107 A1Drohbros.Inc
- Seat and seat system24 Sep 2026US 2026/0283360 A1Ts Tech Co., Ltd.
- Passive spinal support system3 Sep 2026US 2026/0256226 A1
- Dual motor elderly seat extension device capable of providing zero gravity attitude27 Aug 2026US 2026/0248287 A1Zhejiang Feili Technology Co., Ltd.
- Lumbar support chair16 Jul 2026US 2026/0198692 A1
Most cited
By later US patents
- Chair with novel seat construction283US 5,871,258 ASteelcase Inc. · 1999
- Lumbar support for a chair266US 6,572,190 B2HON Technology Inc. · 2003
- Lumbar device238US 6,394,546 B1Steelcase Development Corporation · 2002
- Chair back construction231US 6,729,691 B2HON Technology Inc. · 2004
- Chair including novel back construction227US 5,975,634 ASteelcase Development Corporation · 1999