A47C 3/30
With vertically-acting fluid cylinder
Official title: with vertically-acting fluid cylinder
A47C3/30 (With vertically-acting fluid cylinder) appears on 386 US grants and 254 published applications in this corpus.
Search patents in A47C- Granted patents
- 386
- Published applications
- 254
- Assignees
- 163
- Inventors
- 527
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 11 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 11 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 13 | 0 |
| 2000 | 14 | 0 |
| 2001 | 14 | 5 |
| 2002 | 11 | 8 |
| 2003 | 4 | 7 |
| 2004 | 5 | 13 |
| 2005 | 4 | 8 |
| 2006 | 8 | 12 |
| 2007 | 7 | 7 |
| 2008 | 3 | 8 |
| 2009 | 4 | 4 |
| 2010 | 6 | 2 |
| 2011 | 3 | 8 |
| 2012 | 4 | 5 |
| 2013 | 5 | 7 |
| 2014 | 4 | 21 |
| 2015 | 21 | 18 |
| 2016 | 16 | 6 |
| 2017 | 7 | 11 |
| 2018 | 13 | 20 |
| 2019 | 21 | 16 |
| 2020 | 15 | 14 |
| 2021 | 12 | 4 |
| 2022 | 8 | 9 |
| 2023 | 10 | 10 |
| 2024 | 3 | 9 |
| 2025 | 10 | 11 |
| 2026 | 4 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Base frame assembly and chair having the same8 Sep 2026US 12,727,673 B2Zhongshan Meisihe Furniture Co., Ltd.
- Ergonomic seating system, tilt-lock control and remote powering method and apparatus7 Jul 2026US 12,672,718 B1Steelcase Inc.
- Ergonomic seating system, tilt-lock control and remote powering method and apparatus5 May 2026US 12,616,301 B1Steelcase Inc.
- Active chair24 Mar 2026US 12,582,229 B2Advanced Biomechanical Solutions, LLC
- Wheelchair accessible salon chairs2 Dec 2025US 12,484,697 B2
- Self Leveling Balancing System for Moveable Objects24 Sep 2026US 2026/0283359 A1
- Chair for the sitting of a user10 Sep 2026US 2026/0262853 A1Cerantola S.P.A.
- Multi-functional and multimodal ergonomic/therapeutic chair and interface system11 Jun 2026US 2026/0157527 A1
- Chair28 May 2026US 2026/0144372 A1B4K GmbH
- Seating furniture with seat, backrest, and swivel mechanism14 May 2026US 2026/0130508 A1Eb-Invent GmbH
Most cited
By later US patents
- Woven fabric membrane for a seating surface256US 6,035,901 AHerman Miller, Inc. · 2000
- Office chair249US 6,059,368 AHerman Miller, Inc. · 2000
- Office chair224US 6,386,634 B1Herman Miller, Inc. · 2002
- Backrest199US 6,588,842 B2Herman Miller, Inc. · 2003
- Seating structure having a backrest with a bowed section176US 6,722,741 B2Herman Miller, Inc. · 2004