A47B 57/50
Characterised by shape or orientation of opening
Official title: characterised by shape or orientation of opening, e.g. keyhole-shaped
A47B57/50 (Characterised by shape or orientation of opening) appears on 148 US grants and 120 published applications in this corpus.
Search patents in A47B- Granted patents
- 148
- Published applications
- 120
- Assignees
- 103
- Inventors
- 231
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 0 |
| 2004 | 3 | 2 |
| 2005 | 1 | 5 |
| 2006 | 2 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 1 | 7 |
| 2014 | 7 | 5 |
| 2015 | 6 | 3 |
| 2016 | 4 | 5 |
| 2017 | 9 | 15 |
| 2018 | 7 | 10 |
| 2019 | 10 | 9 |
| 2020 | 8 | 8 |
| 2021 | 6 | 4 |
| 2022 | 3 | 9 |
| 2023 | 5 | 9 |
| 2024 | 11 | 6 |
| 2025 | 8 | 4 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Adjustable lift combined type shelf28 Jul 2026US 12,690,672 B2Protrend Co., Ltd.
- Shelving units utilizing hybrid connection system24 Feb 2026US 12,557,907 B2Taiwan Shin Yeh Enterprise Co., Ltd.
- Storage rack24 Feb 2026US 12,557,908 B2Perfect Site LLC
- Connection piece of columns of goods rack16 Dec 2025US 12,495,897 B2Qingdao Lanshan Trade Co., Ltd.
- Shelf18 Nov 2025US 12,471,701 B1Shenzhen Baite Youpin Supply Chain Co., Ltd.
- Rod fixing structure6 Aug 2026US 2026/0224027 A1
- Storage assembly6 Aug 2026US 2026/0224031 A1Backyard Products, LLC
- Adjustable lift combined type shelf9 Jul 2026US 2026/0191325 A1Protrend Co., Ltd.
- Storage rack25 Jun 2026US 2026/0174226 A1Perfect Site LLC
- Connection structure for beam and column, and storage rack30 Apr 2026US 2026/0114613 A1Flexispot, Inc.
Most cited
By later US patents
- Framework for shelving unit196US 5,463,966 ASpacemaker Limited · 1995
- Assemblable modular elements, in particular in thin sheet, for the formation of a metal shelving142US 5,036,778 A1991
- Gun rack111US 4,776,471 A1988
- Merchandise pusher tray with adjustable side barriers96US 8,720,702 B2Southern Imperial, Inc. · 2014
- Wall mountable modular component mounting system85US 5,485,932 ADigital Equipment Corporation · 1996