A47C 23/28
Tensioning devices therefor
A47C23/28 (Tensioning devices therefor) appears on 14 US grants and 11 published applications in this corpus.
Search patents in A47C- Granted patents
- 14
- Published applications
- 11
- Assignees
- 5
- Inventors
- 32
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Adjustable firmness mattress assemblies4 Mar 2025US 12,239,230 B2Dreamwell, Ltd.
- Voice-control intelligent mattress with hardness capable of being adjusted in multiple stages22 Feb 2022US 11,253,080 B2
- System for multi-dimensional stiffness control of surfaces18 Jan 2022US 11,224,297 B2
- Apparatus and method for automatic adjustment of a support surface with interwoven support elements19 Sep 2017US 9,763,841 B2Tamarack Habilitation Technologies, Inc.
- Support surface assembly and tensioning method for a sleeping person31 Jan 2017US 9,554,655 B2Airnettress Ltd.
- Adjustable firmness mattress assemblies5 Oct 2023US 2023/0309704 A1Dreamwell, Ltd.
- Voice-control intelligent mattress with hardness capable of being adjusted in multiple stages22 Apr 2021US 2021/0112991 A1
- System for Adjusting the Firmness of a Substrate13 Aug 2020US 2020/0253383 A1UDP Labs, Inc.
- System for multi-dimensional stiffness control of surfaces12 Sep 2019US 2019/0274447 A1
- Support apparatus for equipment for lying or sitting on27 Aug 2015US 2015/0238021 A1
Most cited
By later US patents
- Structural unit having net member incorporated therein, seat and method for treating end section of net member18US 6,485,103 B1Delta Tooling Co., Ltd. · 2002
- Body support and method for supporting a body14US 7,467,426 B12008
- Back support with adjustable straps9US 5,867,852 A1999
- Webbed frame for furniture8US 6,584,627 B12003
- Bedstead having a woven support6US 3,968,528 A1976