B21F 33/025
Mounting of mattress innersprings on borderframes
Official title: {Mounting of mattress innersprings on borderframes}
B21F33/025 (Mounting of mattress innersprings on borderframes) appears on 21 US grants and 10 published applications in this corpus.
Search patents in B21F- Granted patents
- 21
- Published applications
- 10
- Assignees
- 13
- Inventors
- 36
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for transferring coil springs from a coil winding device to a conveyor belt of a pocketed coil assembly machine10 Dec 2024US 12,162,696 B2Spuhl AG
- Magnetic lift platform for transfer of coil springs21 Nov 2023US 11,820,606 B2Spuhl AG
- Machine and method for assembling a bedding foundation19 Apr 2022US 11,304,535 B2L&P Property Management Company
- Innerspring manufacturing and assembly system and components for selectable coil orientation, position adjustment and coil conveyance31 May 2016US 9,352,913 B2Sealy Technology, LLC
- Method and apparatus for producing pocket coil bag row23 Sep 2008US 7,426,810 B2Dreambed Co., Ltd
- Method For Transferring Coil Springs From A Coil Winding Device To A Conveyor Belt Of A Pocketed Coil Assembly Machine13 Feb 2025US 2025/0051103 A1Spuhl AG
- Method For Transferring Coil Springs From A Coil Winding Device To A Conveyor Belt Of A Pocketed Coil Assembly Machine15 Aug 2024US 2024/0270510 A1Spuhl AG
- Method for making a spring core for a mattress or for seating products21 Jul 2022US 2022/0226880 A1NV Bekaert SA
- Magnetic Lift Platform For Transfer Of Coil Springs10 Feb 2022US 2022/0041380 A1Spuhl AG
- Machine and method for assembling a bedding foundation5 Dec 2019US 2019/0365114 A1L&P Property Management Company
Most cited
By later US patents
- Apparatus and method for automatically securing borderwires on mattress innersprings18US 4,724,590 AHartco Company · 1988
- Apparatus and method for automatically securing borderwires on mattress innersprings11US 4,815,182 AHartco Company · 1989
- Apparatus and method for automatically securing borderwires on mattress innersprings11US 4,829,643 AHartco Company · 1989
- Innerspring manufacturing and assembly system and components for selectable coil orientation, position adjustment and coil conveyance11US 9,352,913 B2Sealy Technology, LLC · 2016
- Process and apparatus for the production of innersprings for mattresses and upholstered furniture9US 5,054,178 ASpuhl AG · 1991