A47C 27/04
Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds
Official title: with spring inlays (A47C27/20 takes precedence)
A47C27/04 (Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds) appears on 932 US grants and 1,051 published applications in this corpus.
Search patents in A47C- Granted patents
- 932
- Published applications
- 1,051
- Assignees
- 311
- Inventors
- 1,052
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 10 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 12 | 0 |
| 1985 | 7 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 11 | 0 |
| 1996 | 16 | 0 |
| 1997 | 11 | 0 |
| 1998 | 11 | 0 |
| 1999 | 10 | 0 |
| 2000 | 21 | 0 |
| 2001 | 22 | 3 |
| 2002 | 18 | 11 |
| 2003 | 11 | 17 |
| 2004 | 20 | 25 |
| 2005 | 16 | 24 |
| 2006 | 15 | 25 |
| 2007 | 15 | 27 |
| 2008 | 11 | 34 |
| 2009 | 16 | 35 |
| 2010 | 17 | 27 |
| 2011 | 14 | 33 |
| 2012 | 18 | 27 |
| 2013 | 19 | 37 |
| 2014 | 22 | 30 |
| 2015 | 26 | 38 |
| 2016 | 34 | 46 |
| 2017 | 19 | 36 |
| 2018 | 30 | 46 |
| 2019 | 39 | 60 |
| 2020 | 48 | 70 |
| 2021 | 50 | 68 |
| 2022 | 41 | 69 |
| 2023 | 55 | 48 |
| 2024 | 42 | 81 |
| 2025 | 52 | 81 |
| 2026 | 49 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Customized mattress system with hybrid elements6 Oct 2026US 12,751,560 B1Mattai SA
- Apparatus and method for supporting an object22 Sep 2026US 12,740,650 B2
- Elastic module unit, elastic cushion, and furniture22 Sep 2026US 12,740,651 B2
- Elastic connection structure, row of springs, elastic mattress, and method for using elastic mattress15 Sep 2026US 12,733,749 B2
- Partially foam encased pocketed spring assembly8 Sep 2026US 12,727,679 B2L&P Property Management Company
- Mattresses with comfort and stability zones1 Oct 2026US 2026/0294124 A1
- A method for making a bow-shaped spring sofa and a bow-shaped spring sofa1 Oct 2026US 2026/0294125 A1Qingdao Shichuanzhoupanshi Furniture Co., Ltd.
- Bed mesh assembly device and bed mesh assembly method1 Oct 2026US 2026/0295713 A1Guangzhou Lianrou Machinery & Equipment Co., Ltd.
- Mattresses including a coil layer and an elastomeric cushioning element24 Sep 2026US 2026/0283374 A1Purple Innovation, LLC
- Mattresses including stacked elastomeric layers and related methods for same17 Sep 2026US 2026/0272185 A1Purple Innovation, LLC
Most cited
By later US patents
- Inflatable mattress with improved border support wall234US 5,642,546 ASelect Comfort Corporation · 1997
- Inflatable mattress with improved border support wall215US 5,765,246 ASelect Comfort Corporation · 1998
- Thermally controllable heating mattress133US 4,423,308 ASimmons U.S.A. Corporation · 1983
- Bed mattress having an improved pillow top128US 4,449,261 ASimmons U.S.A. Corporation · 1984
- Innerspring construction118US 4,578,834 ASimmons U.S.A. Corporation · 1986