A47C 4/04
Folding chairs with inflexible seats
A47C4/04 (Folding chairs with inflexible seats) appears on 658 US grants and 546 published applications in this corpus.
Search patents in A47C- Granted patents
- 658
- Published applications
- 546
- Assignees
- 256
- Inventors
- 876
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 2 |
| 2002 | 19 | 16 |
| 2003 | 16 | 18 |
| 2004 | 9 | 10 |
| 2005 | 16 | 16 |
| 2006 | 12 | 11 |
| 2007 | 13 | 12 |
| 2008 | 13 | 13 |
| 2009 | 4 | 14 |
| 2010 | 11 | 11 |
| 2011 | 8 | 17 |
| 2012 | 12 | 15 |
| 2013 | 12 | 23 |
| 2014 | 25 | 20 |
| 2015 | 23 | 34 |
| 2016 | 25 | 22 |
| 2017 | 30 | 34 |
| 2018 | 28 | 25 |
| 2019 | 29 | 31 |
| 2020 | 36 | 39 |
| 2021 | 23 | 28 |
| 2022 | 30 | 25 |
| 2023 | 21 | 28 |
| 2024 | 22 | 34 |
| 2025 | 31 | 31 |
| 2026 | 18 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Seat board of foldable chair and bottom frame thereof6 Oct 2026US 12,751,549 B2
- Customizable foldable chair29 Sep 2026US 12,745,845 B2Letsgetout Inc.
- Folding chair with structural enhancements for increased load bearing28 Jul 2026US 12,690,687 B2Zhuhai Shichang Metals Ltd.
- Chair14 Jul 2026US 12,677,950 B2Lifetime Products, Inc.
- Foldable rocking chair frame and rocking chair14 Jul 2026US 12,677,951 B1Ninghai Jiarun Hardware Co., Ltd.
- Chair8 Oct 2026US 2026/0305827 A1Lifetime Products, Inc.
- 3'-utr sequences for stabilization of rna1 Oct 2026US 2026/0297594 A1BioNTech SE
- Chair3 Sep 2026US 2026/0256294 A1Keter Home and Garden Products Ltd
- Folding chair23 Jul 2026US 2026/0206972 A1Inno-Sports Co., Ltd.
- Retractable and foldable hanging basket16 Jul 2026US 2026/0198688 A1
Most cited
By later US patents
- Folding cooling lounge chair94US 4,141,585 A1979
- Portable furniture80US 4,533,174 A1985
- Nested, independently deployable bench and table apparatus and method79US 6,109,687 ALifetime Products, Inc. · 2000
- Lounge chair71US 5,246,265 A1993
- Foldable stool68US 4,043,277 AThe Raymond Lee Organization, Inc. · 1977