B31B 50/76
Opening and distending flattened articles
B31B50/76 (Opening and distending flattened articles) appears on 422 US grants and 267 published applications in this corpus.
Search patents in B31B- Granted patents
- 422
- Published applications
- 267
- Assignees
- 200
- Inventors
- 600
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 13 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 16 | 0 |
| 1986 | 17 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 0 |
| 2002 | 4 | 6 |
| 2003 | 4 | 5 |
| 2004 | 4 | 11 |
| 2005 | 8 | 15 |
| 2006 | 7 | 19 |
| 2007 | 7 | 13 |
| 2008 | 14 | 8 |
| 2009 | 6 | 17 |
| 2010 | 8 | 9 |
| 2011 | 9 | 5 |
| 2012 | 10 | 11 |
| 2013 | 4 | 12 |
| 2014 | 7 | 12 |
| 2015 | 12 | 11 |
| 2016 | 7 | 13 |
| 2017 | 6 | 6 |
| 2018 | 10 | 10 |
| 2019 | 10 | 21 |
| 2020 | 9 | 10 |
| 2021 | 12 | 10 |
| 2022 | 14 | 16 |
| 2023 | 10 | 10 |
| 2024 | 15 | 7 |
| 2025 | 4 | 5 |
| 2026 | 9 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System of folding displays using an automatic display assembly machine and method of using the same22 Sep 2026US 12,740,658 B2
- Machines, systems, and methods for assembling packaging cases18 Aug 2026US 12,709,081 B2WestRock Packaging Systems, LLC
- Intelligent carton blank erecting26 May 2026US 12,636,847 B2Shanghai Soontrue Machinery Equipment Co., Ltd.
- Opening and shaping box blank of packing box19 May 2026US 12,629,910 B2Shanghai Soontrue Machinery Equipment Co., Ltd.
- Flap folding device, box manufacturing device, box sealing device, and box packaging device5 May 2026US 12,617,570 B2Ishida Co., Ltd.
- Gusseted containers for food products1 Oct 2026US 2026/0296715 A1Graphic Packaging International, Inc.
- System of folding displays using an automatic display assembly machine and method of using the same9 Jul 2026US 2026/0191343 A1Diamond Display Group, Inc.
- Method for packaging products in boxes and packaging apparatus operating according to this method21 May 2026US 2026/0138772 A1R. A. Jones & Co. Inc.
- Machines, systems, and methods for assembling packaging cases14 May 2026US 2026/0131553 A1WestRock Packaging Systems, LLC
- Folding apparatus and sealing apparatus30 Apr 2026US 2026/0116603 A1Ishida Co., Ltd.
Most cited
By later US patents
- Apparatus for erecting boxes76US 5,061,231 ARobert Bosch GmbH · 1991
- Carton formation system61US 5,106,359 A1992
- Device for picking up semi-rigid sheet-like elements from a magazine and transferring them onto a conveyor60US 4,194,442 A1980
- Carton erection and sealing apparatus60US 4,578,054 A1986
- Bottle packaging machine55US 3,940,907 AFederal Paper Board Company, Inc. · 1976