A47C 7/021
Detachable or loose seat cushions
Official title: {Detachable or loose seat cushions}
A47C7/021 (Detachable or loose seat cushions) appears on 525 US grants and 554 published applications in this corpus.
Search patents in A47C- Granted patents
- 525
- Published applications
- 554
- Assignees
- 257
- Inventors
- 986
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 12 | 0 |
| 1991 | 11 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 12 | 0 |
| 1996 | 19 | 0 |
| 1997 | 9 | 0 |
| 1998 | 5 | 0 |
| 1999 | 11 | 0 |
| 2000 | 14 | 0 |
| 2001 | 6 | 0 |
| 2002 | 8 | 9 |
| 2003 | 5 | 10 |
| 2004 | 7 | 19 |
| 2005 | 10 | 19 |
| 2006 | 9 | 14 |
| 2007 | 6 | 20 |
| 2008 | 10 | 18 |
| 2009 | 6 | 13 |
| 2010 | 16 | 16 |
| 2011 | 7 | 16 |
| 2012 | 8 | 12 |
| 2013 | 9 | 21 |
| 2014 | 8 | 26 |
| 2015 | 18 | 27 |
| 2016 | 22 | 33 |
| 2017 | 25 | 37 |
| 2018 | 24 | 27 |
| 2019 | 16 | 26 |
| 2020 | 25 | 26 |
| 2021 | 18 | 38 |
| 2022 | 25 | 26 |
| 2023 | 26 | 27 |
| 2024 | 19 | 17 |
| 2025 | 23 | 32 |
| 2026 | 12 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- U-shaped plate for cushion and seat frame6 Oct 2026US 12,751,552 B2Nanjing Huandatong Electronic Technology Co., Ltd
- Expandable and varied furniture structure6 Oct 2026US 12,751,557 B2Home Creations Inc.
- Combined sofa4 Aug 2026US 12,696,979 B2Sophia & William Brands Co. Ltd
- Back brace for sitting4 Aug 2026US 12,697,241 B1Magically Pain Free, LLC
- Folding chair7 Jul 2026US 12,672,720 B2Guangzhou Gisili Baby Products Co. Limited
- Cushion device6 Aug 2026US 2026/0224033 A1
- Cushion for postpartum use and the like16 Jul 2026US 2026/0198691 A1
- Inflatable Seat18 Jun 2026US 2026/0165478 A1Shandong Longming Information Technology Co., Ltd
- Inflatable seat cushion11 Jun 2026US 2026/0157534 A1Ease Seating Systems, Inc.
- Attachable Seating Cushion Device4 Jun 2026US 2026/0150967 A1
Most cited
By later US patents
- Multi-layer cushion and cover194US 6,901,617 B2Roho, Inc. · 2005
- Process for forming gelatinous elastomer materials183US 6,413,458 B1EdiZONE, LC · 2002
- Stacked cushions177US 7,076,822 B2EdiZONE, LC · 2006
- Foam-air hybrid cushion and method of making same170US 5,845,352 ARoho, Inc. · 1998
- Customized seat cushion169US 5,018,790 AJay Medical, Ltd. · 1991