B31B 70/813
Applying closures
Official title: {Applying closures}
B31B70/813 (Applying closures) appears on 698 US grants and 635 published applications in this corpus.
Search patents in B31B- Granted patents
- 698
- Published applications
- 635
- Assignees
- 203
- Inventors
- 757
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 10 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 11 | 0 |
| 1987 | 18 | 0 |
| 1988 | 6 | 0 |
| 1989 | 25 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 11 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 19 | 0 |
| 2000 | 29 | 0 |
| 2001 | 19 | 19 |
| 2002 | 27 | 33 |
| 2003 | 39 | 48 |
| 2004 | 28 | 68 |
| 2005 | 40 | 40 |
| 2006 | 30 | 30 |
| 2007 | 31 | 30 |
| 2008 | 22 | 23 |
| 2009 | 13 | 26 |
| 2010 | 14 | 34 |
| 2011 | 11 | 12 |
| 2012 | 15 | 32 |
| 2013 | 13 | 17 |
| 2014 | 12 | 19 |
| 2015 | 16 | 19 |
| 2016 | 12 | 18 |
| 2017 | 8 | 26 |
| 2018 | 12 | 18 |
| 2019 | 12 | 19 |
| 2020 | 14 | 15 |
| 2021 | 14 | 15 |
| 2022 | 14 | 17 |
| 2023 | 14 | 21 |
| 2024 | 21 | 15 |
| 2025 | 13 | 13 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Easy open plastic bags22 Sep 2026US 12,741,786 B2Polytex Fibers Corporation
- Polymeric bags and method to make same9 Jun 2026US 12,649,620 B2Poly-America, L. P.
- Bag making machines and methods thereof14 Apr 2026US 12,600,107 B2CMD Corporation
- Multi-film thermoplastic bags having contact areas14 Apr 2026US 12,600,527 B2The Glad Products Company
- 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
- Resealable bag enclosure with scalloped tabs24 Sep 2026US 2026/0285545 A1Illinois Tool Works Inc.
- Wipes dispensing pouch assembly with integral membrane and zipper closure2 Jul 2026US 2026/0182788 A1Illinois Tool Works Inc.
- 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
Most cited
By later US patents
- Vented pouch arrangement and method229US 5,059,036 AKapak Corporation · 1991
- Reclosable bag material, method and apparatus228US 4,909,017 AMinigrip, Inc. · 1990
- Reclosable bag, material, and method of and means for making same223US 4,617,683 AMinigrip, Inc. · 1986
- Tubular plastic end stops bonded to plastic zipper218US 5,482,375 AMobil Oil Corporation · 1996
- Protruding end stops for plastic reclosable fastener195US 5,131,121 AMobil Oil Corporation · 1992