B31B 2150/001
Flexible containers made from sheets or blanks: with square or cross bottom
Official title: {with square or cross bottom}
B31B2150/001 (Flexible containers made from sheets or blanks: with square or cross bottom) appears on 105 US grants and 80 published applications in this corpus.
Search patents in B31B- Granted patents
- 105
- Published applications
- 80
- Assignees
- 70
- Inventors
- 185
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 0 |
| 2002 | 0 | 2 |
| 2003 | 4 | 4 |
| 2004 | 0 | 2 |
| 2005 | 1 | 4 |
| 2006 | 2 | 3 |
| 2007 | 1 | 10 |
| 2008 | 1 | 1 |
| 2009 | 2 | 1 |
| 2010 | 4 | 2 |
| 2011 | 2 | 6 |
| 2012 | 1 | 5 |
| 2013 | 2 | 1 |
| 2014 | 5 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 6 |
| 2018 | 2 | 5 |
| 2019 | 3 | 3 |
| 2020 | 0 | 3 |
| 2021 | 7 | 5 |
| 2022 | 5 | 3 |
| 2023 | 1 | 2 |
| 2024 | 2 | 6 |
| 2025 | 4 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Paper retail bag11 Nov 2025US 12,466,612 B2Domtar Paper Company, LLC
- Method for producing a tool including a sheet21 Oct 2025US 12,447,691 B2
- Packaging bag and manufacturing system thereof13 May 2025US 12,296,541 B2Kyoraku Co., Ltd.
- Bag forming apparatus7 Jan 2025US 12,187,006 B2Ranpak Corp.
- Rectangular-bottomed packaging bag, and method for manufacturing rectangular-bottomed packaging bag1 Oct 2024US 12,103,737 B2Hosokawa Yoko Co., Ltd.
- Flap spreading device in square bottom forming device of bag making machine, square bottom forming device in bag making machine, and bag making machine23 Apr 2026US 2026/0109127 A1Newlong Industrial Company Limited
- Packaging bag and manufacturing system thereof29 Aug 2024US 2024/0286818 A1Kyoraku Co., Ltd.
- Standing pouch with cap on folded edge1 Aug 2024US 2024/0253885 A1
- Device and Method for the Production of Bags from Pieces of Tube20 Jun 2024US 2024/0198621 A1Starlinger & Co Gesellschaft M.B.H.
- Pouch-type bag made of paper as well as method and apparatus for producing a pouch-type bag made of paper9 May 2024US 2024/0150083 A1Windmoller & Holscher
Most cited
By later US patents
- Stand-up pouch having cross-seal feature and method of making312US 5,350,240 AS. C. Johnson & Son, Inc. · 1994
- Bag for liquids, pastes, or granulates and method of manufacturing97US 5,547,284 A1996
- Container and method of manufacturing same from a web of flexible material60US 6,120,183 ATechnical Developers, Inc. · 2000
- Stand-up packaging pouch, package body and feed roll, and manufacturing methods therefor59US 7,156,556 B2Plast Corporation · 2007
- Method and apparatus for manufacturing tube-shaped packages made of flexible material51US 6,510,673 B1BP Europack S.p.A. · 2003