A47C 1/03274
Of torsion type
Official title: {of torsion type}
A47C1/03274 (Of torsion type) appears on 172 US grants and 131 published applications in this corpus.
Search patents in A47C- Granted patents
- 172
- Published applications
- 131
- Assignees
- 47
- Inventors
- 199
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 11 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 3 |
| 2002 | 10 | 6 |
| 2003 | 5 | 6 |
| 2004 | 7 | 11 |
| 2005 | 6 | 5 |
| 2006 | 5 | 3 |
| 2007 | 4 | 7 |
| 2008 | 5 | 4 |
| 2009 | 2 | 4 |
| 2010 | 5 | 5 |
| 2011 | 4 | 6 |
| 2012 | 4 | 4 |
| 2013 | 4 | 1 |
| 2014 | 3 | 17 |
| 2015 | 14 | 12 |
| 2016 | 11 | 6 |
| 2017 | 5 | 3 |
| 2018 | 4 | 4 |
| 2019 | 7 | 7 |
| 2020 | 8 | 2 |
| 2021 | 0 | 2 |
| 2022 | 3 | 3 |
| 2023 | 4 | 5 |
| 2024 | 2 | 1 |
| 2025 | 1 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Theater chair or seat with a flip-up/flip-down seat member, a reclining back member, and an automatic return9 Jun 2026US 12,648,650 B2Hiddenlake 822 LLC
- Seating arrangement6 Jan 2026US 12,514,369 B2Steelcase Inc.
- Seating arrangement6 Jan 2026US 12,514,370 B2Steelcase Inc.
- Chair arm assembly18 Feb 2025US 12,226,028 B2Steelcase Inc.
- Tiltable chair17 Sep 2024US 12,089,741 B2Quali Co., Ltd.
- Seating arrangement2 Apr 2026US 2026/0090644 A1Steelcase Inc.
- Theater chair or seat with a flip-up/flip-down seat member, a reclining back member, and an automatic return25 Sep 2025US 2025/0295236 A1Hiddenlake 822 LLC
- Base frame assembly and chair having the same24 Jul 2025US 2025/0235001 A1Zhongshan Meisihe Furniture Co., Ltd.
- Chair arm assembly13 Feb 2025US 2025/0049218 A1Steelcase Inc.
- Seating arrangement7 Mar 2024US 2024/0074582 A1Steelcase Inc.
Most cited
By later US patents
- Chair with novel seat construction283US 5,871,258 ASteelcase Inc. · 1999
- Lumbar device238US 6,394,546 B1Steelcase Development Corporation · 2002
- Chair including novel back construction227US 5,975,634 ASteelcase Development Corporation · 1999
- Chair construction187US 6,523,898 B1Steelcase Development Corporation · 2003
- Seating unit with novel seat construction171US 6,394,548 B1Steelcase Development Corporation · 2002