B31B 50/46
And interconnecting side walls
Official title: and interconnecting side walls
B31B50/46 (And interconnecting side walls) appears on 127 US grants and 90 published applications in this corpus.
Search patents in B31B- Granted patents
- 127
- Published applications
- 90
- Assignees
- 80
- Inventors
- 202
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 3 |
| 2007 | 0 | 2 |
| 2008 | 3 | 2 |
| 2009 | 3 | 3 |
| 2010 | 0 | 2 |
| 2011 | 1 | 4 |
| 2012 | 3 | 3 |
| 2013 | 1 | 3 |
| 2014 | 3 | 4 |
| 2015 | 6 | 3 |
| 2016 | 4 | 8 |
| 2017 | 4 | 9 |
| 2018 | 7 | 6 |
| 2019 | 5 | 1 |
| 2020 | 4 | 3 |
| 2021 | 4 | 3 |
| 2022 | 5 | 2 |
| 2023 | 2 | 9 |
| 2024 | 6 | 5 |
| 2025 | 6 | 6 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for manufacturing food packaging paper tray that can be easily separated and discarded15 Sep 2026US 12,734,779 B2
- Egg carton and formation apparatus and method17 Feb 2026US 12,552,596 B2Consider Provisions, LLC
- Methods and machine for forming containers having top flange with glued corners16 Dec 2025US 12,496,796 B2WestRock Packaging Systems, LLC
- Methods and systems for forming trays18 Nov 2025US 12,472,716 B2Graphic Packaging International, Inc.
- Device and machine for forming boxes with internal partition wall and relative method18 Nov 2025US 12,472,717 B2I,M.A. Industria Macchine Automatiche S.p.A.
- Arrangement to mount onto a horizontal-type automatic adhesive-free corrugated cardboard box machine and box mounting method21 May 2026US 2026/0138348 A1Cartocor S.A
- Arrangement to mount onto a vertical-type automatic adhesive-free corrugated cardboard box machine and box mounting method21 May 2026US 2026/0138349 A1Cartocor S.A
- Methods and systems for forming trays5 Feb 2026US 2026/0034758 A1Graphic Packaging International, Inc.
- Apparatus and method for forming a tapered tray23 Oct 2025US 2025/0326196 A1International Paper Company
- Method for manufacturing food packaging paper tray that can be easily separated and discarded3 Jul 2025US 2025/0214314 A1
Most cited
By later US patents
- Tray forming apparatus and method43US 5,971,906 A1999
- Manufacture of boxes with integrally reinforced walls38US 4,581,005 A1986
- Machine and method for forming reinforced polygonal containers from blanks38US 8,105,223 B2Smurfit-Stone Container Enterprises, Inc. · 2012
- Carton forming35US 5,980,440 AMcGuckin & Pyle, Inc. · 1999
- Case forming and transferring machine32US 3,941,037 AA B C Packaging Machine Corporation · 1976