B68G 9/00
Placing upholstery springs in pockets
Official title: Placing upholstery springs in pockets; Fitting springs in upholstery
B68G9/00 (Placing upholstery springs in pockets) appears on 159 US grants and 136 published applications in this corpus.
Search patents in B68G- Granted patents
- 159
- Published applications
- 136
- Assignees
- 48
- Inventors
- 137
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 11 | 0 |
| 2001 | 4 | 1 |
| 2002 | 4 | 3 |
| 2003 | 4 | 2 |
| 2004 | 4 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 2 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 4 |
| 2012 | 1 | 3 |
| 2013 | 2 | 4 |
| 2014 | 3 | 4 |
| 2015 | 5 | 12 |
| 2016 | 8 | 9 |
| 2017 | 4 | 6 |
| 2018 | 4 | 6 |
| 2019 | 6 | 12 |
| 2020 | 10 | 11 |
| 2021 | 12 | 9 |
| 2022 | 7 | 12 |
| 2023 | 12 | 7 |
| 2024 | 8 | 12 |
| 2025 | 4 | 7 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pocketed spring assembly having dimensionally stabilizing substrate25 Aug 2026US 12,714,236 B2L&P Property Management Company
- Pocketed spring assembly having dimensionally stabilizing substrate25 Aug 2026US 12,714,237 B2L&P Property Management Company
- Box spring assembly system14 Jul 2026US 12,679,718 B2Serta Restokraft Mattress Co., Inc.
- Assembly machine for manufacturing partially foam encased pocketed spring assembly16 Jun 2026US 12,655,013 B2L&P Property Management Company
- Welding apparatus for strings of springs12 May 2026US 12,622,530 B2L&P Property Management Company
- Glueless pocketed spring cushioning unit assembler26 Feb 2026US 2026/0054978 A1
- Method of manufacturing innerspring unit26 Feb 2026US 2026/0054979 A1
- Method of making string of springs for use in pocketed spring assembly30 Oct 2025US 2025/0331651 A1L&P Property Management Company
- Box spring assembly system30 Oct 2025US 2025/0333292 A1Serta Restokraft Mattress Co., Inc.
- Bed mesh combination device, bed mesh combination method, and bed mesh manufactured using the same17 Jul 2025US 2025/0229321 A1Guangzhou Lianrou Machinery & Equipment Co., Ltd.
Most cited
By later US patents
- Method and apparatus for making a series of pocketed coil springs106US 4,439,977 ASimmons U.S.A. Corporation · 1984
- Multiple rate coil spring assembly82US 5,868,383 AL&P Property Management Company · 1999
- Method and apparatus for manufacturing innerspring constructions59US 4,566,926 ASimmons U.S.A. Corporation · 1986
- Method for providing pocketed coil strings having a flat overlap side seam58US 4,854,023 ASimmons U.S.A. Corporation · 1989
- Retracted pocket spring mattress; method for manufacturing of a pocket spring mattress and device for pre-tensioning pocketed coil spings53US 6,591,438 B1Stjernfjadrar AB · 2003