A47C 7/40
For the back
Official title: for the back
A47C7/40 (For the back) appears on 2,695 US grants and 2,231 published applications in this corpus.
Search patents in A47C- Granted patents
- 2,695
- Published applications
- 2,231
- Assignees
- 1,036
- Inventors
- 3,723
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 19 | 0 |
| 1978 | 20 | 0 |
| 1979 | 13 | 0 |
| 1980 | 25 | 0 |
| 1981 | 6 | 0 |
| 1982 | 17 | 0 |
| 1983 | 15 | 0 |
| 1984 | 22 | 0 |
| 1985 | 40 | 0 |
| 1986 | 32 | 0 |
| 1987 | 39 | 0 |
| 1988 | 30 | 0 |
| 1989 | 34 | 0 |
| 1990 | 37 | 0 |
| 1991 | 36 | 0 |
| 1992 | 33 | 0 |
| 1993 | 32 | 0 |
| 1994 | 48 | 0 |
| 1995 | 33 | 0 |
| 1996 | 49 | 0 |
| 1997 | 38 | 0 |
| 1998 | 46 | 0 |
| 1999 | 50 | 0 |
| 2000 | 65 | 0 |
| 2001 | 48 | 14 |
| 2002 | 59 | 59 |
| 2003 | 58 | 72 |
| 2004 | 73 | 75 |
| 2005 | 53 | 88 |
| 2006 | 52 | 61 |
| 2007 | 51 | 77 |
| 2008 | 56 | 69 |
| 2009 | 46 | 67 |
| 2010 | 53 | 71 |
| 2011 | 54 | 84 |
| 2012 | 51 | 73 |
| 2013 | 52 | 71 |
| 2014 | 53 | 86 |
| 2015 | 93 | 113 |
| 2016 | 88 | 121 |
| 2017 | 105 | 113 |
| 2018 | 95 | 116 |
| 2019 | 121 | 107 |
| 2020 | 118 | 126 |
| 2021 | 112 | 104 |
| 2022 | 84 | 86 |
| 2023 | 101 | 105 |
| 2024 | 79 | 117 |
| 2025 | 79 | 84 |
| 2026 | 62 | 72 |
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.
- Expandable and varied furniture structure6 Oct 2026US 12,751,557 B2Home Creations Inc.
- 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
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
- Woven fabric membrane for a seating surface256US 6,035,901 AHerman Miller, Inc. · 2000
- Office chair249US 6,059,368 AHerman Miller, Inc. · 2000
- Lumbar device238US 6,394,546 B1Steelcase Development Corporation · 2002