B31B 2150/00
Flexible containers made from sheets or blanks
Official title: Flexible containers made from sheets or blanks, e.g. from flattened tubes
B31B2150/00 (Flexible containers made from sheets or blanks) appears on 496 US grants and 432 published applications in this corpus.
Search patents in B31B- Granted patents
- 496
- Published applications
- 432
- Assignees
- 292
- Inventors
- 765
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 8 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 14 | 0 |
| 1992 | 19 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 10 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 9 | 2 |
| 2002 | 2 | 8 |
| 2003 | 11 | 16 |
| 2004 | 4 | 11 |
| 2005 | 2 | 9 |
| 2006 | 7 | 16 |
| 2007 | 4 | 15 |
| 2008 | 5 | 17 |
| 2009 | 8 | 10 |
| 2010 | 10 | 17 |
| 2011 | 4 | 36 |
| 2012 | 8 | 18 |
| 2013 | 16 | 12 |
| 2014 | 16 | 21 |
| 2015 | 8 | 26 |
| 2016 | 13 | 28 |
| 2017 | 20 | 31 |
| 2018 | 21 | 22 |
| 2019 | 10 | 16 |
| 2020 | 16 | 22 |
| 2021 | 21 | 20 |
| 2022 | 17 | 13 |
| 2023 | 8 | 16 |
| 2024 | 18 | 20 |
| 2025 | 16 | 5 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B31B 2150/001Flexible containers made from sheets or blanks: with square or cross bottomIndexing code105
- B31B 2150/003Made from tubular sheetsIndexing code66
- B31B 2150/002Flexible containers made from sheets or blanks: by joining superimposed sheetsIndexing code54
- B31B 2150/10The longitudinal axes of the containers being parallel to the direction inIndexing code17
- B31B 2150/20The longitudinal axes of the containers being perpendicular to the direction inIndexing code6
Recent patents
- Easy open plastic bags22 Sep 2026US 12,741,786 B2Polytex Fibers Corporation
- Reusable envelope with pre-cut closure flap, method and machine for manufaturing such an envelope14 Jul 2026US 12,679,599 B2Holweg Group
- Stitchless bulk bag with heat fused seams and method of production17 Feb 2026US 12,552,109 B2Ameriglobe, LLC
- Method of production of fabric bags or containers using heat fused seams16 Dec 2025US 12,497,214 B2Ameriglobe, LLC
- Paper folding device9 Dec 2025US 12,492,096 B2Duplo Seiko Corporation
- 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
- Inflatable mobile phone and accessories pouch5 Mar 2026US 2026/0060396 A1Dongguan Polyfilm Plastic Products Company Limited
- Selectable discrete-length envelopes29 Jan 2026US 2026/0028156 A1Pregis LLC
- Easy open plastic bags1 Jan 2026US 2026/0001683 A1Polytex Fibers Corporation
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
- Self-supporting polymer bag and method of manufacture165US 5,158,371 A1992
- Bag for liquids, pastes, or granulates and method of manufacturing97US 5,547,284 A1996
- Method for making plastic bags89US 4,041,851 A1977
- Bag and bag making apparatus71US 4,540,089 AJohnsen & Jorgensen Jaypak Limited · 1985