B65D 33/34
With special means for indicating unauthorised opening
Official title: with special means for indicating unauthorised opening {(B65D33/2516, B65D33/2585 take precedence)}
B65D33/34 (With special means for indicating unauthorised opening) appears on 141 US grants and 143 published applications in this corpus.
Search patents in B65D- Granted patents
- 141
- Published applications
- 143
- Assignees
- 93
- Inventors
- 284
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 10 |
| 2004 | 5 | 4 |
| 2005 | 2 | 7 |
| 2006 | 3 | 8 |
| 2007 | 4 | 4 |
| 2008 | 4 | 5 |
| 2009 | 3 | 2 |
| 2010 | 0 | 2 |
| 2011 | 0 | 5 |
| 2012 | 4 | 4 |
| 2013 | 2 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 6 |
| 2016 | 6 | 8 |
| 2017 | 3 | 7 |
| 2018 | 1 | 8 |
| 2019 | 4 | 8 |
| 2020 | 4 | 5 |
| 2021 | 2 | 7 |
| 2022 | 8 | 11 |
| 2023 | 5 | 11 |
| 2024 | 5 | 5 |
| 2025 | 8 | 3 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anti-tampering container14 Jul 2026US 12,679,600 B2Logistics and Supply Chain MultiTech R&D Centre Limited
- Metal detectable plastic bag and methods of making and use14 Jul 2026US 12,679,601 B2Nasco Sampling LLC
- Easy peel pouch3 Mar 2026US 12,565,369 B2Mars, Incorporated
- Easy-to-fill child resistant bag9 Dec 2025US 12,492,044 B2Guang Dong Asuwant Packaging Co., Ltd
- Tamper evident sealable bag assembly with note tab and method2 Dec 2025US 12,486,094 B2Pan Pacific Plastics Mfg., Inc.
- Systems and methods for making tamper-resistant containers30 Jul 2026US 2026/0217422 A1
- Tamper resistant containers and methods relating to the same11 Jun 2026US 2026/0159280 A1
- Pressure sensitive printable paper products and their use with packaging and containers14 May 2026US 2026/0131935 A1Documotion Research, Inc.
- Tamper evident sealable bag assembly with note tab and method12 Mar 2026US 2026/0070728 A1Pan Pacific Plastics Mfg., Inc.
- Flexible reclosable enclosure with flap29 Jan 2026US 2026/0028162 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Tamper-evident, flexible, reclosable package102US 5,456,928 AOscar Mayer Foods Corporation · 1995
- Tamper evident link bags93US 4,832,505 AMinigrip, Inc. · 1989
- Container with an easy opening indicator or security break indicator82US 5,217,307 AMorgan Adhesives Company · 1993
- Shipping container and system along with shipping method employing the same78US 6,737,974 B22004
- Gussetted flexible package with reclosable mouth using a snap type reclosure strip75US 5,692,837 AFres-co System USA, Inc. · 1997