B65D 33/01
Ventilation or drainage of bags
B65D33/01 (Ventilation or drainage of bags) appears on 349 US grants and 465 published applications in this corpus.
Search patents in B65D- Granted patents
- 349
- Published applications
- 465
- Assignees
- 256
- Inventors
- 778
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 12 | 0 |
| 2001 | 10 | 2 |
| 2002 | 9 | 6 |
| 2003 | 5 | 11 |
| 2004 | 4 | 18 |
| 2005 | 6 | 20 |
| 2006 | 7 | 15 |
| 2007 | 6 | 15 |
| 2008 | 2 | 17 |
| 2009 | 6 | 19 |
| 2010 | 4 | 7 |
| 2011 | 6 | 16 |
| 2012 | 11 | 14 |
| 2013 | 10 | 16 |
| 2014 | 4 | 15 |
| 2015 | 15 | 31 |
| 2016 | 6 | 21 |
| 2017 | 18 | 35 |
| 2018 | 26 | 27 |
| 2019 | 25 | 32 |
| 2020 | 22 | 38 |
| 2021 | 12 | 20 |
| 2022 | 19 | 18 |
| 2023 | 17 | 16 |
| 2024 | 16 | 14 |
| 2025 | 10 | 16 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recyclable bag7 Apr 2026US 12,594,749 B2Amcor Flexibles North America, Inc.
- Sachet and packaging machine17 Mar 2026US 12,576,999 B2Merz Verpackungsmaschinen GmbH
- Storage bag and storage device27 Jan 2026US 12,532,979 B2
- Ventilated hanging game bag13 Jan 2026US 12,520,837 B2
- Packaged molded article, crosslinking rubber composition, method for producing packaged molded article, method for producing crosslinking rubber composition, and tread for tire25 Nov 2025US 12,479,983 B2Asahi Kasei Kabushiki Kaisha
- Storage bag1 Oct 2026US 2026/0296736 A1Universal Trim Supply Co., Ltd.
- Vacuum sealing bag24 Sep 2026US 2026/0285573 A1Guangdong Willing Technology Corporation
- Coffee-preserving bag body and method for manufacturing same21 May 2026US 2026/0138789 A1W & Co.
- Packaging and thermoplastic composition for packaging2 Apr 2026US 2026/0091922 A1Rigenera Di Sfrecola Cosimo Damiano
- Flexible bag body and cooler bag26 Mar 2026US 2026/0084886 A1Zhejiang Natural Outdoor Goods Inc.
Most cited
By later US patents
- Vegetable containing storage bag and method for storing same122US 5,492,705 ADowbrands L.P. · 1996
- Vented reclosable bag106US 5,911,508 A1999
- Plastic bag with air exhaustion valve100US 4,532,652 AMobil Oil Corporation · 1985
- Flexible storage bag with selectively-activatible closure90US 6,149,304 AThe Procter & Gamble Company · 2000
- Ventable storage bag87US 7,004,632 B2The Glad Products Company · 2006