B65D 5/20
Rigid or semi-rigid containers of polygonal cross-section: by folding-up portions connected to
Official title: by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form (specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections B65D5/36)
B65D5/20 (Rigid or semi-rigid containers of polygonal cross-section: by folding-up portions connected to) appears on 1,446 US grants and 1,464 published applications in this corpus.
Search patents in B65D- Granted patents
- 1,446
- Published applications
- 1,464
- Assignees
- 694
- Inventors
- 2,273
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 29 | 0 |
| 1978 | 22 | 0 |
| 1979 | 18 | 0 |
| 1980 | 22 | 0 |
| 1981 | 34 | 0 |
| 1982 | 22 | 0 |
| 1983 | 6 | 0 |
| 1984 | 15 | 0 |
| 1985 | 13 | 0 |
| 1986 | 13 | 0 |
| 1987 | 14 | 0 |
| 1988 | 16 | 0 |
| 1989 | 18 | 0 |
| 1990 | 15 | 0 |
| 1991 | 28 | 0 |
| 1992 | 14 | 0 |
| 1993 | 26 | 0 |
| 1994 | 30 | 0 |
| 1995 | 21 | 0 |
| 1996 | 11 | 0 |
| 1997 | 13 | 0 |
| 1998 | 26 | 0 |
| 1999 | 29 | 0 |
| 2000 | 29 | 0 |
| 2001 | 27 | 10 |
| 2002 | 20 | 20 |
| 2003 | 17 | 30 |
| 2004 | 17 | 38 |
| 2005 | 19 | 40 |
| 2006 | 16 | 41 |
| 2007 | 14 | 46 |
| 2008 | 13 | 49 |
| 2009 | 24 | 27 |
| 2010 | 21 | 48 |
| 2011 | 25 | 63 |
| 2012 | 13 | 46 |
| 2013 | 41 | 42 |
| 2014 | 45 | 52 |
| 2015 | 40 | 52 |
| 2016 | 47 | 61 |
| 2017 | 30 | 64 |
| 2018 | 41 | 52 |
| 2019 | 44 | 66 |
| 2020 | 55 | 92 |
| 2021 | 61 | 92 |
| 2022 | 56 | 107 |
| 2023 | 70 | 87 |
| 2024 | 60 | 69 |
| 2025 | 75 | 91 |
| 2026 | 48 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B65D 5/24With adjacent sides interconnected by gusset folds369
- B65D 5/2038At least two opposed folded-up portions having a non-rectangular shape318
- B65D 5/2052Characterised by integral closure-flaps310
- B65D 5/22Held erect by extensions of one or more sides being doubled-over to309
- B65D 5/2014The central panel having a non rectangular shape227
- B65D 5/28With extensions of sides permanently secured to adjacent sides, with sides permanently193
- B65D 5/30With tongue-and-slot or like connections between sides and extensions of other sides143
- B65D 5/2004The container body having hollow side-walls66
All 12 subgroupsShow fewer
- B65D 5/26With extensions of opposite sides mutually interlocking to lie against other sides25
- B65D 5/209The adjacent edges of folded-up portions being joined by moulding seams in24
- B65D 5/2095A part of the folded-up portions defining an inwardly folded ledge at23
- B65D 5/2085The central panel having incisions defining foldable flaps hinged to its edges8
Recent patents
- Volume-adjustable package box6 Oct 2026US 12,752,957 B2Wolf Rock Design LLC
- Leak-resistant container with reinforced corners6 Oct 2026US 12,752,958 B1Packaging Corporation of America
- Apparatus and a method for producing dish-shaped product packages29 Sep 2026US 12,746,733 B2Jospak Oy
- Cardboard tray22 Sep 2026US 12,741,778 B2Stackpack B.V.
- Tray with separable features22 Sep 2026US 12,741,781 B2Graphic Packaging International, Inc.
- Container for products8 Oct 2026US 2026/0307847 A1Graphic Packaging International, Inc.
- Corrugated cardboard box that can be assembled either by hand or automatically by a forming machine8 Oct 2026US 2026/0307848 A1Cartocor S.A
- Corrugated e-commerce carton with built-in platform8 Oct 2026US 2026/0307850 A1Altria Client Services LLC
- Divider construct for trays, related systems and methods8 Oct 2026US 2026/0307851 A1Graphic Packaging International, Inc.
- Tray for food products1 Oct 2026US 2026/0296716 A1Graphic Packaging International, Inc.
Most cited
By later US patents
- Sterile package for surgical devices1,522US 5,356,006 AEthicon, Inc. · 1994
- Package for horticultural items362US 4,621,733 A1986
- Quick erecting foldable portable cooler276US 6,736,309 B1Wes Pak, Inc. · 2004
- Hazardous materials container186US 5,615,795 A1997
- Foldable portable cooler with enhanced over-center locking handle180US 6,837,420 B2Wes Pak, Inc. · 2005