A47C 7/002
Chair or stool bases
Official title: {Chair or stool bases (A47C3/20 takes precedence)}
A47C7/002 (Chair or stool bases) appears on 960 US grants and 934 published applications in this corpus.
Search patents in A47C- Granted patents
- 960
- Published applications
- 934
- Assignees
- 421
- Inventors
- 1,455
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 12 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 15 | 0 |
| 2000 | 18 | 0 |
| 2001 | 8 | 3 |
| 2002 | 9 | 19 |
| 2003 | 15 | 19 |
| 2004 | 12 | 17 |
| 2005 | 17 | 19 |
| 2006 | 8 | 17 |
| 2007 | 10 | 21 |
| 2008 | 14 | 29 |
| 2009 | 9 | 13 |
| 2010 | 11 | 24 |
| 2011 | 21 | 21 |
| 2012 | 12 | 33 |
| 2013 | 15 | 17 |
| 2014 | 25 | 52 |
| 2015 | 45 | 55 |
| 2016 | 50 | 59 |
| 2017 | 61 | 66 |
| 2018 | 52 | 59 |
| 2019 | 73 | 70 |
| 2020 | 63 | 62 |
| 2021 | 63 | 42 |
| 2022 | 57 | 48 |
| 2023 | 55 | 39 |
| 2024 | 33 | 46 |
| 2025 | 31 | 51 |
| 2026 | 24 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Seat6 Oct 2026US D1,150,944 S1Humanscale Corporation · Design
- Device for stabilizing an object22 Sep 2026US 12,740,644 B2
- Removal mechanism1 Sep 2026US 12,721,444 B2L&P Property Management Company
- Chair18 Aug 2026US 12,708,213 B2Okamura Corporation
- Article of furniture11 Aug 2026US 12,702,232 B2Naught One Ltd.
- Footrest Positioning and Adjustment Mechanism for Chairs8 Oct 2026US 2026/0305829 A1Hsin Chernq Enterprise Co., Ltd.
- 3'-utr sequences for stabilization of rna1 Oct 2026US 2026/0297594 A1BioNTech SE
- Chair for the sitting of a user10 Sep 2026US 2026/0262841 A1Cerantola S.P.A.
- Branded Modular Seat10 Sep 2026US 2026/0262844 A1Encouraging Arts, Inc.
- Chair for the sitting of a user10 Sep 2026US 2026/0262853 A1Cerantola S.P.A.
Most cited
By later US patents
- Chair construction187US 6,523,898 B1Steelcase Development Corporation · 2003
- Quick release seat support155US 4,840,343 A1989
- Reclinable chair146US 7,798,573 B2Formway Furniture Limited · 2010
- Chair construction142US 6,913,315 B2Steelcase Development Corporation · 2005
- Lumbar support141US 6,874,852 B2Formway Furniture Limited · 2005