A47C 23/0438
Of special shape
Official title: {of special shape}
A47C23/0438 (Of special shape) appears on 114 US grants and 72 published applications in this corpus.
Search patents in A47C- Granted patents
- 114
- Published applications
- 72
- Assignees
- 34
- Inventors
- 93
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 12 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 3 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 3 |
| 2013 | 1 | 3 |
| 2014 | 3 | 2 |
| 2015 | 3 | 5 |
| 2016 | 3 | 2 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 2 | 4 |
| 2020 | 4 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 7 |
| 2023 | 0 | 5 |
| 2024 | 2 | 12 |
| 2025 | 5 | 12 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spring having positioning ring and elastic mattress2 Jun 2026US 12,642,362 B2
- Spring module and spring cushion for furniture19 May 2026US 12,628,960 B2New-Tec Integration (Xiamen) Co., Ltd.
- Spring module and spring cushion for furniture28 Apr 2026US 12,611,045 B2
- Elastic cushion, additional elastic cushion layer, and furniture17 Mar 2026US 12,575,684 B2
- Spring module and spring cushion for furniture20 Jan 2026US 12,527,410 B2New-Tec Integration (Xiamen) Co., Ltd.
- Spring module and spring cushion for furniture16 Jul 2026US 2026/0198698 A1New-Tec Integration (Xiamen) Co., Ltd.
- Elastic module and elastic cushion19 Mar 2026US 2026/0076487 A1
- Spring mattress with pillow20 Nov 2025US 2025/0351982 A1
- Foldable base plate of elastic mattress and elastic mattress9 Oct 2025US 2025/0311854 A1
- Spring having positioning ring and elastic mattress2 Oct 2025US 2025/0302207 A1
Most cited
By later US patents
- Mattress foundation with springs and foam elements65US 5,210,890 ATualatin Sleep Products, Inc. · 1993
- Pocketed bedding or seating product having strings of springs with vertically offset pockets52US 6,826,796 B1L&P Property Management Company · 2004
- Automatic mattress surface contour and support changing apparatus with wave sensors49US 5,625,914 A1997
- Spring core for a mattress47US 4,817,924 A1989
- Collapsible box spring41US 4,771,995 ALeggett & Platt, Incorporated · 1988