A47C 7/444
Of torsion type
Official title: {of torsion type}
A47C7/444 (Of torsion type) appears on 47 US grants and 34 published applications in this corpus.
Search patents in A47C- Granted patents
- 47
- Published applications
- 34
- Assignees
- 33
- Inventors
- 82
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 3 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 5 |
| 2024 | 4 | 5 |
| 2025 | 3 | 2 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Motion mechanism for a chair and chair30 Jun 2026US 12,667,194 B2L&P Property Management Company
- Ergonomic chair10 Feb 2026US 12,543,859 B2Kinetik Solutions, LLC
- Seating arrangement6 Jan 2026US 12,514,370 B2Steelcase Inc.
- Stowaway compact rocker19 Aug 2025US 12,390,013 B2GCI Outdoor, Inc.
- Portable rebounding device with adjustable and collapsible features1 Jul 2025US 12,342,943 B2Rocking Inc.
- Ergonomic chair18 Jun 2026US 2026/0165483 A1Kinetik Solutions, LLC
- Seating arrangement2 Apr 2026US 2026/0090644 A1Steelcase Inc.
- Seating system19 Feb 2026US 2026/0047685 A1
- Reclining chair with counterbalance adjustment system19 Feb 2026US 2026/0047686 A1Current Products Corp.
- Portable rebounding device with adjustable and collapsible features29 Jan 2026US 2026/0026628 A1Rocking Inc.
Most cited
By later US patents
- Chair tilt and chair height control apparatus113US 5,029,940 AWestinghouse Electric Corp. · 1991
- Chair control with forward tilt86US 5,333,368 AHaworth, Inc. · 1994
- Chair with automatically adjustable tilting back80US 4,333,683 ACenter for Design Research and Development N.V. · 1982
- Tilting control assembly for chair80US 5,224,758 AItoki Crebio Corporation · 1993
- Chair73US 7,717,513 B2Kokuyo Furniture Co., Ltd. · 2010