A47C 9/105
Having several foldable or detachable legs converging in one point
Official title: {having several foldable or detachable legs converging in one point}
A47C9/105 (Having several foldable or detachable legs converging in one point) appears on 90 US grants and 73 published applications in this corpus.
Search patents in A47C- Granted patents
- 90
- Published applications
- 73
- Assignees
- 32
- Inventors
- 117
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 5 | 2 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 4 |
| 2008 | 5 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 2 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 3 |
| 2015 | 4 | 6 |
| 2016 | 4 | 4 |
| 2017 | 1 | 5 |
| 2018 | 9 | 4 |
| 2019 | 6 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 2 | 5 |
| 2023 | 5 | 4 |
| 2024 | 8 | 5 |
| 2025 | 4 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Foldable device21 Apr 2026US 12,604,990 B2Step2Gold Co., Ltd.
- Foldable crutch stool7 Apr 2026US 12,593,901 B2Hongkong Pishon Medical Equipment Co., Limited
- Foldable chair30 Dec 2025US 12,507,808 B2Step2Gold Co., Ltd.
- Folding crutch chair with a folding auxiliary positioning mechanism9 Sep 2025US 12,408,738 B2Step2Gold Co., Ltd.
- Folding crutch chair with a compact support device9 Sep 2025US 12,408,739 B2Step2Gold Co., Ltd.
- Multi-rod support device with an enlarged carrying surface6 Aug 2026US 2026/0223994 A1Step2Gold Co., Ltd.
- Tripod support device with an operation synchronizing mechanism6 Aug 2026US 2026/0224035 A1Step2Gold Co., Ltd.
- Camping chair7 May 2026US 2026/0123760 A1Shenzhen Thousandshores Technology Co., Ltd.
- Foldable crutch stool11 Sep 2025US 2025/0280931 A1Hongkong Pishon Medical Equipment Co., Limited
- Foldable device with an automatic spreading positioning function8 May 2025US 2025/0143471 A1Step2Gold Co., Ltd.
Most cited
By later US patents
- Folding canvas chair110US 4,184,711 A1980
- Collapsible tripod stool78US 4,934,638 A1990
- Collapsible folding furniture73US 5,709,428 AMassachusetts Institute of Technology · 1998
- Foldable stool66US 5,851,052 A1998
- Cross-member supporter for foldable furniture63US 5,975,626 ATofasco of America, Inc. · 1999