B31B 2160/20
Shape of flexible containers: with structural provision for thickness of contents
Official title: with structural provision for thickness of contents
B31B2160/20 (Shape of flexible containers: with structural provision for thickness of contents) appears on 483 US grants and 510 published applications in this corpus.
Search patents in B31B- Granted patents
- 483
- Published applications
- 510
- Assignees
- 268
- Inventors
- 765
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 10 | 0 |
| 1989 | 9 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 10 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 12 | 3 |
| 2002 | 9 | 13 |
| 2003 | 11 | 19 |
| 2004 | 7 | 14 |
| 2005 | 5 | 13 |
| 2006 | 9 | 11 |
| 2007 | 8 | 22 |
| 2008 | 5 | 14 |
| 2009 | 4 | 15 |
| 2010 | 9 | 17 |
| 2011 | 8 | 26 |
| 2012 | 8 | 24 |
| 2013 | 12 | 12 |
| 2014 | 15 | 20 |
| 2015 | 11 | 25 |
| 2016 | 12 | 34 |
| 2017 | 22 | 39 |
| 2018 | 18 | 29 |
| 2019 | 22 | 21 |
| 2020 | 24 | 29 |
| 2021 | 26 | 23 |
| 2022 | 26 | 17 |
| 2023 | 19 | 32 |
| 2024 | 21 | 22 |
| 2025 | 21 | 12 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and machine for manufacturing a flexible envelope-like bag, particularly with reinforcement29 Sep 2026US 12,747,068 B2Holweg Group
- Flexible bag having a convertible bottom, method and machine for manufacturing same25 Aug 2026US 12,715,657 B2Holweg Group
- Stitchless bulk bag including a baffle insert and method of production21 Jul 2026US 12,686,556 B1Ameriglobe, LLC
- Packaging bag with spout and method for producing packaging bag with spout14 Jul 2026US 12,679,619 B2ZACROS Corporation
- Bag manufacturing apparatus and method10 Mar 2026US 12,570,423 B2Haver & Boecker Ohg
- Machine and method for forming bags of flexible material24 Sep 2026US 2026/0284999 A1Ilapak Italia S.P.A.
- Method of production of fabric bags or containers using heat fused seams25 Jun 2026US 2026/0176025 A1Ameriglobe, LLC
- 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
- Gusset bags with tear strips8 Jan 2026US 2026/0008594 A1Illinois Tool Works Inc.
- Sealed bag based on folding process and processing method thereof4 Dec 2025US 2025/0367898 A1Dongguan He Xin Packing Co., Ltd.
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
- Flat bottom plastic bag and method of making same293US 4,717,262 ATC Manufacturing Co., Inc. · 1988
- Reclosable stand-up bag186US 5,788,378 ATenneco Packaging Specialty and Consumer Products Inc. · 1998
- Self-supporting polymer bag and method of manufacture165US 5,158,371 A1992
- Free-standing container151US 3,935,993 A1976