B31B 2160/00
Shape of flexible containers
B31B2160/00 (Shape of flexible containers) appears on 1,609 US grants and 1,355 published applications in this corpus.
Search patents in B31B- Granted patents
- 1,609
- Published applications
- 1,355
- Assignees
- 720
- Inventors
- 2,169
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 37 | 0 |
| 1977 | 27 | 0 |
| 1978 | 27 | 0 |
| 1979 | 10 | 0 |
| 1980 | 25 | 0 |
| 1981 | 24 | 0 |
| 1982 | 17 | 0 |
| 1983 | 16 | 0 |
| 1984 | 22 | 0 |
| 1985 | 34 | 0 |
| 1986 | 30 | 0 |
| 1987 | 38 | 0 |
| 1988 | 33 | 0 |
| 1989 | 34 | 0 |
| 1990 | 34 | 0 |
| 1991 | 33 | 0 |
| 1992 | 35 | 0 |
| 1993 | 30 | 0 |
| 1994 | 22 | 0 |
| 1995 | 23 | 0 |
| 1996 | 24 | 0 |
| 1997 | 23 | 0 |
| 1998 | 37 | 0 |
| 1999 | 40 | 0 |
| 2000 | 35 | 0 |
| 2001 | 35 | 15 |
| 2002 | 37 | 48 |
| 2003 | 47 | 57 |
| 2004 | 32 | 53 |
| 2005 | 23 | 61 |
| 2006 | 25 | 49 |
| 2007 | 20 | 51 |
| 2008 | 13 | 46 |
| 2009 | 17 | 45 |
| 2010 | 27 | 58 |
| 2011 | 22 | 80 |
| 2012 | 30 | 81 |
| 2013 | 43 | 58 |
| 2014 | 41 | 62 |
| 2015 | 41 | 71 |
| 2016 | 43 | 67 |
| 2017 | 49 | 75 |
| 2018 | 44 | 55 |
| 2019 | 40 | 44 |
| 2020 | 45 | 55 |
| 2021 | 45 | 35 |
| 2022 | 46 | 39 |
| 2023 | 35 | 62 |
| 2024 | 48 | 43 |
| 2025 | 38 | 29 |
| 2026 | 13 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- “Deli” bag with extra thin walls and increased strength and method of manufacturing same18 Aug 2026US 12,709,439 B2New York Packaging II
- Stitchless bulk bag including a baffle insert and method of production21 Jul 2026US 12,686,556 B1Ameriglobe, LLC
- Reusable envelope with pre-cut closure flap, method and machine for manufaturing such an envelope14 Jul 2026US 12,679,599 B2Holweg Group
- Machine and method for forming bags of flexible material24 Sep 2026US 2026/0284999 A1Ilapak Italia S.P.A.
- Resealable bag enclosure with scalloped tabs24 Sep 2026US 2026/0285545 A1Illinois Tool Works Inc.
- Improved method for making and filling pouches with or without spout for packaging fluid products and related plant23 Jul 2026US 2026/0208901 A1
- Cushion sheet production module and packaging bag production device thereof16 Jul 2026US 2026/0200640 A1Beta (Shenzhen) Package Products Co., Ltd
- Bag making machines and methods thereof2 Jul 2026US 2026/0184034 A1CMD Corporation
Most cited
By later US patents
- Method and apparatus for manufacturing sleeve- or bag-like containers, as well as such container435US 5,228,234 AKlerk's Plastic Industrie, B.V. · 1993
- 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
- Method and apparatus for manufacturing a shell-shaped package, and such shell-shaped package279US 5,496,251 AJei Lee Corporation · 1996
- Reclosable stand-up bag186US 5,788,378 ATenneco Packaging Specialty and Consumer Products Inc. · 1998