B31B 2155/001
Flexible containers made from webs: by folding webs longitudinally
Official title: {by folding webs longitudinally}
B31B2155/001 (Flexible containers made from webs: by folding webs longitudinally) appears on 379 US grants and 422 published applications in this corpus.
Search patents in B31B- Granted patents
- 379
- Published applications
- 422
- Assignees
- 202
- Inventors
- 563
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 5 |
| 2002 | 15 | 15 |
| 2003 | 11 | 16 |
| 2004 | 6 | 11 |
| 2005 | 5 | 11 |
| 2006 | 7 | 12 |
| 2007 | 3 | 6 |
| 2008 | 1 | 9 |
| 2009 | 0 | 10 |
| 2010 | 3 | 20 |
| 2011 | 7 | 19 |
| 2012 | 9 | 28 |
| 2013 | 11 | 18 |
| 2014 | 11 | 20 |
| 2015 | 14 | 16 |
| 2016 | 13 | 20 |
| 2017 | 15 | 27 |
| 2018 | 13 | 26 |
| 2019 | 20 | 13 |
| 2020 | 14 | 21 |
| 2021 | 18 | 16 |
| 2022 | 19 | 22 |
| 2023 | 14 | 25 |
| 2024 | 21 | 16 |
| 2025 | 23 | 11 |
| 2026 | 3 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bag making machines and methods thereof14 Apr 2026US 12,600,107 B2CMD Corporation
- Multi-layer thermoplastic films and bags configured to provide a perceivable color change upon being subjected to a strain and methods of making the same10 Mar 2026US 12,570,068 B2The Glad Products Company
- Vertical packaging machine and associated control method10 Feb 2026US 12,545,463 B2Ulma Packaging, S. Coop.
- Bag making machines and methods thereof16 Dec 2025US 12,496,797 B2CMD Corporation
- Bag making machines and methods thereof2 Dec 2025US 12,485,637 B2CMD Corporation
- Machine and method for forming bags of flexible material24 Sep 2026US 2026/0284999 A1Ilapak Italia S.P.A.
- Film piece joining device, film manufacturing device, bag-shaped container manufacturing device, film piece joining method, film manufacturing method, and bag-shaped container manufacturing method2 Jul 2026US 2026/0184024 A1Idemitsu Unitech Co., Ltd.
- Bag making machines and methods thereof2 Jul 2026US 2026/0184034 A1CMD Corporation
- Web superposing device and bag making apparatus18 Jun 2026US 2026/0166772 A1Totani Corporation
- Vertical bagger using web-alignment score11 Jun 2026US 2026/0159260 A1Pregis LLC
Most cited
By later US patents
- 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
- Flexible thermoplastic containers having visual pattern thereon125US 5,618,111 ADowbrands L.P. · 1997
- Zippered film and bag119US 5,782,733 AInnoflex Incorporated · 1998
- Plastic film zipper bag having straightened heat seals116US 5,152,613 AMobil Oil Corporation · 1992