A47C 23/125
Using vertically mounted tension springs
Official title: {using vertically mounted tension springs}
A47C23/125 (Using vertically mounted tension springs) appears on 6 US grants and 7 published applications in this corpus.
Search patents in A47C- Granted patents
- 6
- Published applications
- 7
- Assignees
- 1
- Inventors
- 10
- Latest grant
- 19 Apr 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 5 |
| 2015 | 1 | 0 |
| 2016 | 4 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
By publication year.
Recent patents
- Plunger matrix mattress assemblies19 Apr 2016US 9,314,108 B2Dreamwell, Ltd.
- Modular plunger matrix mattress19 Apr 2016US 9,314,109 B2Dreamwell, Ltd.
- Folding plunger matrix mattress16 Feb 2016US 9,259,097 B2Dreamwell, Ltd.
- Plunger for a plunger matrix mattress5 Jan 2016US 9,226,591 B2Dreamwell, Ltd.
- Dual-spring plunger for a plunger matrix mattress1 Sep 2015US 9,119,478 B2Dreamwell, Ltd.
- Kind of bed base and its production26 May 2022US 2022/0160143 A1
- Plunger matrix mattress assemblies22 May 2014US 2014/0137333 A1Dreamwell, Ltd.
- Modular plunger matrix mattress22 May 2014US 2014/0137334 A1Dreamwell, Ltd.
- Folding plunger matrix mattress22 May 2014US 2014/0137335 A1Dreamwell, Ltd.
- Dual-spring plunger for a plunger matrix mattress22 May 2014US 2014/0137336 A1Dreamwell, Ltd.
Most cited
By later US patents
- Automated sleep system78US 7,676,872 B22010
- Dual-spring plunger for a plunger matrix mattress25US 9,119,478 B2Dreamwell, Ltd. · 2015
- Modular plunger matrix mattress5US 9,314,109 B2Dreamwell, Ltd. · 2016
- Plunger matrix mattress assemblies4US 9,314,108 B2Dreamwell, Ltd. · 2016
- Plunger for a plunger matrix mattress2US 9,226,591 B2Dreamwell, Ltd. · 2016