A47C 21/022
Sheet holders
Official title: {Sheet holders; Bed cover holders}
A47C21/022 (Sheet holders) appears on 343 US grants and 245 published applications in this corpus.
Search patents in A47C- Granted patents
- 343
- Published applications
- 245
- Assignees
- 73
- Inventors
- 482
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 15 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 11 | 0 |
| 1991 | 7 | 0 |
| 1992 | 15 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 6 |
| 2003 | 1 | 5 |
| 2004 | 8 | 5 |
| 2005 | 6 | 8 |
| 2006 | 8 | 7 |
| 2007 | 6 | 7 |
| 2008 | 5 | 5 |
| 2009 | 4 | 9 |
| 2010 | 4 | 6 |
| 2011 | 5 | 4 |
| 2012 | 3 | 7 |
| 2013 | 3 | 5 |
| 2014 | 7 | 9 |
| 2015 | 8 | 13 |
| 2016 | 6 | 3 |
| 2017 | 7 | 12 |
| 2018 | 8 | 7 |
| 2019 | 5 | 11 |
| 2020 | 13 | 20 |
| 2021 | 12 | 16 |
| 2022 | 13 | 13 |
| 2023 | 11 | 15 |
| 2024 | 10 | 17 |
| 2025 | 12 | 20 |
| 2026 | 17 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Protective sheet and securement assembly6 Oct 2026US 12,751,569 B2Purifas Holdings Pty Ltd
- Air couch bed6 Oct 2026US 12,752,882 B2Team Worldwide Corporation
- Comforter blanket22 Sep 2026US 12,740,649 B2Hest Corporation
- Bed sheet fastener15 Sep 2026US 12,733,748 B1
- Device for making bed18 Aug 2026US 12,708,217 B2
- Bed sheet holder24 Sep 2026US 2026/0283367 A1
- Bed sheet holder24 Sep 2026US 2026/0283368 A1
- Bed Sheet Tensioner17 Sep 2026US 2026/0272184 A1
- Foldable bed sheet fastener10 Sep 2026US 2026/0262850 A1Shenzhen Dalin Electronic Commerce Co., Ltd.
- Inflatable mattress with detachably-fastened quilt6 Aug 2026US 2026/0224039 A1Quzhou Qiuyuan Trading Co., Ltd.
Most cited
By later US patents
- Method and apparatus for securing a tarp1,071US 5,168,605 A1992
- Office chair142US 6,688,690 B2JSJ Seating Company Texas, L.P. · 2004
- Mattress cushion with securement feature103US 4,686,725 ASpan-America Medical Systems, Inc. · 1987
- Bedclothes retainer86US 4,662,016 A1987
- Convenient and safer crib sheet72US 6,243,895 B12001