B31B 70/8134
Applying strings
Official title: {Applying strings; Making string-closed bags}
B31B70/8134 (Applying strings) appears on 93 US grants and 76 published applications in this corpus.
Search patents in B31B- Granted patents
- 93
- Published applications
- 76
- Assignees
- 35
- Inventors
- 137
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 4 |
| 2011 | 1 | 2 |
| 2012 | 1 | 6 |
| 2013 | 2 | 4 |
| 2014 | 2 | 4 |
| 2015 | 5 | 4 |
| 2016 | 1 | 4 |
| 2017 | 4 | 6 |
| 2018 | 3 | 1 |
| 2019 | 3 | 6 |
| 2020 | 2 | 4 |
| 2021 | 4 | 4 |
| 2022 | 3 | 3 |
| 2023 | 3 | 8 |
| 2024 | 6 | 3 |
| 2025 | 4 | 3 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Bag making machines and methods thereof16 Dec 2025US 12,496,797 B2CMD Corporation
- Bag making machines and methods thereof2 Jul 2026US 2026/0184034 A1CMD Corporation
- Waste collection bag21 Aug 2025US 2025/0263228 A1
- Polymeric bags and method to make same6 Mar 2025US 2025/0074696 A1Poly-America, L. P.
- Four side seal packaging bag and preparation device and method thereof9 Jan 2025US 2025/0010568 A1Shanghai Zhoutai Light Industry Machinery Manufacturing Co., Ltd.
- Multi-film thermoplastic structures and bags having visually-distinct contact areas7 Nov 2024US 2024/0367864 A1The Glad Products Company
Most cited
By later US patents
- Side opening flexible bag with longitudinally oriented carrying handle secured to side panels119US 5,054,619 AThe Procter & Gamble Company · 1991
- Elastic top drawtape bag and method of manufacturing the same65US 6,059,458 ATenneco Packaging · 2000
- Method and apparatus for manufacturing draw tape bags44US 4,624,654 AMobil Oil Corporation · 1986
- Method and apparatus for producing drawstring bags33US 4,664,649 AAMI, Inc. · 1987
- Method and apparatus for making non-roping thermoplastic draw tape for thermplastic bags32US 4,895,611 AMobil Oil Corporation · 1990