B65D 33/04
Windows or other apertures
Official title: Windows or other apertures, e.g. for viewing contents {(ventilation apertures B65D33/01; windows for level indication B65D33/004)}
B65D33/04 (Windows or other apertures) appears on 83 US grants and 149 published applications in this corpus.
Search patents in B65D- Granted patents
- 83
- Published applications
- 149
- Assignees
- 86
- Inventors
- 268
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 3 |
| 2006 | 1 | 4 |
| 2007 | 0 | 6 |
| 2008 | 0 | 7 |
| 2009 | 3 | 4 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 3 | 4 |
| 2013 | 2 | 9 |
| 2014 | 4 | 10 |
| 2015 | 4 | 15 |
| 2016 | 7 | 7 |
| 2017 | 6 | 9 |
| 2018 | 4 | 3 |
| 2019 | 4 | 8 |
| 2020 | 0 | 12 |
| 2021 | 4 | 9 |
| 2022 | 12 | 5 |
| 2023 | 4 | 6 |
| 2024 | 6 | 4 |
| 2025 | 5 | 7 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Weatherproof pouch21 May 2026US 2026/0138790 A1
- Collectible container with preformed customizable window region comprising predefined removable sub-regions of material23 Apr 2026US 2026/0109512 A1
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Most cited
By later US patents
- Children's storage solution75US 9,630,750 B2Lucky Cat Inc. LLC · 2017
- Perforated plastic bag for packaging fruits or vegetables53US 5,226,735 A1993
- Bag with auxiliary pocket and viewing window43US 4,991,980 ABagcraft Corporation of America · 1991
- Bag-in-a-bag window bag assembly with high resolution content indicia31US 5,326,575 ABagcraft Corporation of America · 1994
- Window bag with polyester lining and method of forming same30US 6,033,114 ABagcraft Packaging, L.L.C. · 2000