B65D 27/32
Opening devices incorporated during envelope manufacture
Official title: Opening devices incorporated during envelope manufacture (incorporated during closing of envelope B43M5/00; separate devices for opening envelopes B43M7/00)
B65D27/32 (Opening devices incorporated during envelope manufacture) appears on 164 US grants and 134 published applications in this corpus.
Search patents in B65D- Granted patents
- 164
- Published applications
- 134
- Assignees
- 89
- Inventors
- 273
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 9 | 1 |
| 2002 | 13 | 3 |
| 2003 | 4 | 6 |
| 2004 | 2 | 9 |
| 2005 | 4 | 6 |
| 2006 | 1 | 8 |
| 2007 | 5 | 3 |
| 2008 | 2 | 5 |
| 2009 | 1 | 2 |
| 2010 | 3 | 11 |
| 2011 | 1 | 7 |
| 2012 | 3 | 6 |
| 2013 | 7 | 4 |
| 2014 | 4 | 5 |
| 2015 | 2 | 6 |
| 2016 | 4 | 4 |
| 2017 | 5 | 4 |
| 2018 | 6 | 3 |
| 2019 | 1 | 5 |
| 2020 | 4 | 7 |
| 2021 | 3 | 6 |
| 2022 | 4 | 1 |
| 2023 | 3 | 6 |
| 2024 | 1 | 6 |
| 2025 | 3 | 7 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Envelope with internal pocket1 Sep 2026US 12,722,855 B1Admail West, Inc.
- Reusable envelope with pre-cut closure flap, method and machine for manufaturing such an envelope14 Jul 2026US 12,679,599 B2Holweg Group
- Coin mailer and display device31 Mar 2026US 12,592,112 B2Antsy Labs, LLC
- Blank and paperboard envelope formed therefrom2 Sep 2025US 12,404,075 B2Calumet Carton Company
- Reusable mailer bag to plush toy29 Jul 2025US 12,371,228 B2Green Trek LLC
- Greeting cards and envelopes with concealed features19 Mar 2026US 2026/0077611 A1Wolf Punch, LLC
- Reusable mailer bag to plush toy, backpack, or various clothing items5 Mar 2026US 2026/0060393 A1
- Flexible Mailer and Blank for Making Same29 Jan 2026US 2026/0028157 A1Conformer Products, Inc.
- Envelope and release cover formed from common substrate25 Sep 2025US 2025/0296740 A1Pregis LLC
- Reusable mailer bag to neck pillow31 Jul 2025US 2025/0242972 A1Green Trek LLC
Most cited
By later US patents
- Multi-use envelope64US 5,503,328 AWaldorf Corporation · 1996
- Combination greeting card and gift pouch49US 5,133,496 ACards and Pouches, Inc. · 1992
- Convertible envelope48US 5,439,101 AWaldorf Corporation · 1995
- Easy open envelope47US 6,223,977 B1Westvaco Corporation · 2001
- Combination envelope and display device45US 4,640,030 A1987