A47C 1/027
By means of clamps or friction locking members
Official title: by means of clamps or friction locking members
A47C1/027 (By means of clamps or friction locking members) appears on 99 US grants and 66 published applications in this corpus.
Search patents in A47C- Granted patents
- 99
- Published applications
- 66
- Assignees
- 57
- Inventors
- 155
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 4 |
| 2003 | 3 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 4 |
| 2006 | 1 | 4 |
| 2007 | 2 | 1 |
| 2008 | 2 | 1 |
| 2009 | 3 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 6 | 7 |
| 2016 | 0 | 3 |
| 2017 | 5 | 2 |
| 2018 | 2 | 2 |
| 2019 | 3 | 8 |
| 2020 | 10 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 4 |
| 2023 | 5 | 3 |
| 2024 | 1 | 5 |
| 2025 | 3 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Collapsible chair21 Apr 2026US 12,604,983 B2
- Collapsible stadium chair31 Mar 2026US 12,588,764 B1
- Tattoo support apparatus, headrests, and footrests20 Jan 2026US 12,527,400 B2InkBed, Inc.
- Hammock stand capable of being quickly collapsed and expanded4 Nov 2025US 12,458,132 B2Xiamen Xirui Imp&Exp Co., Ltd.
- Reclining foldable chair and method of operation14 Oct 2025US 12,440,029 B2Escort Outdoor LLC
- Adaptable swing assembly for chair back tilt, chair back tilt locking mechanism and chassis5 Feb 2026US 2026/0033634 A1Zhejiang Anji Dingzhong Furniture Co., Ltd.
- Hammock stand capable of being quickly collapsed and expanded20 Mar 2025US 2025/0089880 A1Xiamen Xirui Imp&Exp Co., Ltd.
- Buoyant Pool Lounge Chair Frame and Buoyant Pool Lounge Chair Using the Same13 Feb 2025US 2025/0049219 A1TRC Recreation, LP
- Collapsible chair29 Aug 2024US 2024/0285078 A1
- Control pull-bar structure of chair adjusting device22 Aug 2024US 2024/0280168 A1
Most cited
By later US patents
- Adjustable chair actuator136US 5,577,807 ASteelcase Inc. · 1996
- Chair or couch with a movable back support88US 3,989,297 A1976
- Chair, a support, and components59US 9,033,421 B2Formway Furniture Limited · 2015
- Pivoting recliner apparatus and method58US 4,790,599 A1988
- Force adjusting device53US 6,179,384 B2Steelcase Development Corporation · 2001