A47C 23/04
Spring mattresses with rigid frame or forming part of the bedstead: using
Official title: using springs in compression, e.g. coiled
A47C23/04 (Spring mattresses with rigid frame or forming part of the bedstead: using) appears on 396 US grants and 308 published applications in this corpus.
Search patents in A47C- Granted patents
- 396
- Published applications
- 308
- Assignees
- 135
- Inventors
- 384
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 9 | 0 |
| 1978 | 12 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 15 | 0 |
| 1988 | 15 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 7 | 7 |
| 2003 | 4 | 6 |
| 2004 | 8 | 13 |
| 2005 | 10 | 10 |
| 2006 | 9 | 12 |
| 2007 | 4 | 9 |
| 2008 | 9 | 11 |
| 2009 | 6 | 7 |
| 2010 | 4 | 7 |
| 2011 | 6 | 9 |
| 2012 | 5 | 14 |
| 2013 | 11 | 15 |
| 2014 | 16 | 16 |
| 2015 | 11 | 19 |
| 2016 | 17 | 13 |
| 2017 | 5 | 9 |
| 2018 | 11 | 12 |
| 2019 | 6 | 12 |
| 2020 | 14 | 15 |
| 2021 | 14 | 20 |
| 2022 | 11 | 17 |
| 2023 | 10 | 9 |
| 2024 | 10 | 24 |
| 2025 | 13 | 16 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mattresses including stacked elastomeric layers and related methods for same9 Jun 2026US 12,648,654 B1Purple Innovation, LLC
- 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
- Adjustable sleeping system with force control7 Apr 2026US 12,593,927 B2Sleep Technologies, LLC
- Mattresses including stacked elastomeric layers and related methods for same17 Sep 2026US 2026/0272185 A1Purple Innovation, LLC
- Storage box and elastic cushion device6 Aug 2026US 2026/0223997 A1New-Tec Integration (Xiamen) Co., Ltd.
- Spring module and spring cushion for furniture16 Jul 2026US 2026/0198698 A1New-Tec Integration (Xiamen) Co., Ltd.
- Supporting bottom mattress, elastic mattress, and furniture19 Mar 2026US 2026/0076486 A1Newtec Integration (Xiamen) Co., Ltd.
- Elastic module and elastic cushion19 Mar 2026US 2026/0076487 A1
Most cited
By later US patents
- Mattress system116US 5,513,402 A1996
- Bed mattress with air cells and spring pockets103US 6,317,912 B12001
- Pneumatic bed assembly101US 4,306,322 ADial-A-Firm, Inc. · 1981
- Air bed arrangement101US 4,435,864 ASimons U.S.A. Corporation · 1984
- Bedding configuration having variable support characteristics101US 5,105,488 ASimmons Company · 1992