A47C 3/26
With vertical, or inclined toothed rack
Official title: with vertical, {or inclined} toothed rack; {with peg-and-notch mechanism}
A47C3/26 (With vertical, or inclined toothed rack) appears on 28 US grants and 20 published applications in this corpus.
Search patents in A47C- Granted patents
- 28
- Published applications
- 20
- Assignees
- 21
- Inventors
- 53
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 3 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 3 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Telescopic folding chair6 Jan 2026US 12,514,372 B2Zhejiang Sunshine Leisure Products Co., Ltd.
- Dining chair17 Jun 2025US 12,329,287 B2Shenzhen Autral Technology Innovation Co., Ltd.
- Positioner of chair adjusting device29 Apr 2025US 12,285,109 B2
- Active sitting mechanism4 Apr 2023US 11,617,442 B2
- Body support5 Apr 2022US 11,291,307 B2Ergotech Solutions, Inc.
- Dining chair6 Mar 2025US 2025/0072614 A1Shenzhen Autral Technology Innovation Co., Ltd.
- Telescopic folding chair19 Dec 2024US 2024/0415286 A1Zhejiang Sunshine Leisure Products Co., Ltd.
- Positioner of chair adjusting device22 Aug 2024US 2024/0277146 A1
- Body support7 Jul 2022US 2022/0211182 A1Ergotech Solutions, Inc.
- Active sitting mechanism9 Sep 2021US 2021/0274939 A1Ararat Technical Business Ltd.
Most cited
By later US patents
- Adjustable chair60US 4,109,961 AStokke Fabrikker A/S · 1978
- Chair height adjustment mechanism26US 5,234,187 ASteelcase Inc. · 1993
- Adjustable seat pedestal22US 6,138,973 ABrunswick Corporation · 2000
- Leg for a piece furniture with a telescopically movable portion19US 6,092,771 AIDEAssociates Ltd. · 2000
- Chair having a seat that is adjustable in a height and width16US 6,302,482 B1Moll System-und Funktions-Möbel GmbH · 2001