A47C 27/20
With springs moulded in, or situated in openings in foamed material
Official title: with springs moulded in, or situated in openings in foamed material
A47C27/20 (With springs moulded in, or situated in openings in foamed material) appears on 277 US grants and 293 published applications in this corpus.
Search patents in A47C- Granted patents
- 277
- Published applications
- 293
- Assignees
- 123
- Inventors
- 411
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 4 |
| 2002 | 5 | 6 |
| 2003 | 4 | 7 |
| 2004 | 8 | 9 |
| 2005 | 4 | 4 |
| 2006 | 3 | 9 |
| 2007 | 4 | 7 |
| 2008 | 5 | 20 |
| 2009 | 5 | 25 |
| 2010 | 10 | 14 |
| 2011 | 7 | 10 |
| 2012 | 9 | 11 |
| 2013 | 6 | 11 |
| 2014 | 8 | 12 |
| 2015 | 9 | 10 |
| 2016 | 13 | 11 |
| 2017 | 9 | 8 |
| 2018 | 4 | 3 |
| 2019 | 8 | 12 |
| 2020 | 10 | 14 |
| 2021 | 6 | 17 |
| 2022 | 11 | 15 |
| 2023 | 13 | 14 |
| 2024 | 6 | 18 |
| 2025 | 19 | 15 |
| 2026 | 11 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Support cushions including foam arches11 Aug 2026US 12,702,238 B2Comfort Revolution, LLC
- Mattress30 Jun 2026US 12,667,203 B2Bed Patent Holdings Limited Liability Company
- Mattresses including a coil layer and an elastomeric cushioning element23 Jun 2026US 12,660,940 B2Purple Innovation, LLC
- Personalized pillow and/or mattress selection2 Jun 2026US 12,642,364 B2Dreamwell, Ltd.
- Spring module and spring cushion for furniture19 May 2026US 12,628,960 B2New-Tec Integration (Xiamen) Co., Ltd.
- Mattresses including a coil layer and an elastomeric cushioning element24 Sep 2026US 2026/0283374 A1Purple Innovation, LLC
- Spring module and spring cushion for furniture16 Jul 2026US 2026/0198698 A1New-Tec Integration (Xiamen) Co., Ltd.
- Resilient Unit and Method of Manufacture9 Jul 2026US 2026/0191337 A1Hs Products Ltd
- Mattress Device23 Apr 2026US 2026/0108079 A1
- Core support and mattress using the same5 Mar 2026US 2026/0060443 A1
Most cited
By later US patents
- Decubitus ulcer mattress175US 4,706,313 AComfortex Corporation · 1987
- Mattress or cushion structure144US 6,701,556 B2Hill-Rom Services, Inc. · 2004
- Bedding system131US 5,231,717 ALeggett & Platt, Incorporated · 1993
- Adjustable hospital mattress with removable inserts129US 4,628,557 ALutheran Hospital Foundation, Inc. · 1986
- Bed mattress having an improved pillow top128US 4,449,261 ASimmons U.S.A. Corporation · 1984