A47C 4/52
Trunk chairs, i.e. chairs collapsible to trunk shape
A47C4/52 (Trunk chairs, i.e. chairs collapsible to trunk shape) appears on 269 US grants and 179 published applications in this corpus.
Search patents in A47C- Granted patents
- 269
- Published applications
- 179
- Assignees
- 81
- Inventors
- 403
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 13 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 1 |
| 2002 | 6 | 0 |
| 2003 | 1 | 4 |
| 2004 | 3 | 5 |
| 2005 | 4 | 4 |
| 2006 | 7 | 8 |
| 2007 | 0 | 9 |
| 2008 | 4 | 7 |
| 2009 | 5 | 5 |
| 2010 | 6 | 6 |
| 2011 | 5 | 6 |
| 2012 | 6 | 7 |
| 2013 | 6 | 7 |
| 2014 | 6 | 6 |
| 2015 | 6 | 7 |
| 2016 | 5 | 11 |
| 2017 | 7 | 6 |
| 2018 | 7 | 9 |
| 2019 | 12 | 9 |
| 2020 | 7 | 4 |
| 2021 | 6 | 16 |
| 2022 | 14 | 10 |
| 2023 | 12 | 11 |
| 2024 | 9 | 11 |
| 2025 | 6 | 7 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Deployable chair29 Sep 2026US 12,745,847 B2
- Backpack frame convertible to folding chair19 May 2026US 12,628,953 B2
- Folding chair with detachable container12 May 2026US 12,622,526 B2Parklt Co.
- Canopied folding chair assembly24 Mar 2026US 12,582,235 B2
- Telescopic stool16 Dec 2025US 12,495,906 B2Ningbo Tenghao Outdoor Co., Ltd.
- Folding chair with detachable container20 Aug 2026US 2026/0240328 A1Parkit Co.
- Foldable height-increasing stool with backrest16 Apr 2026US 2026/0101996 A1JinHua ShineTree Household Products Co., Ltd.
- CoolChair12 Feb 2026US 2026/0041241 A1
- Foldable chair4 Dec 2025US 2025/0366619 A1Shibumi Shade, Inc.
- Shooting rest chair4 Dec 2025US 2025/0366620 A1AOB Products Company
Most cited
By later US patents