B43M 7/005
Devices for opening envelopes: with at least two cutting discs
Official title: {with at least two cutting discs}
B43M7/005 (Devices for opening envelopes: with at least two cutting discs) appears on 15 US grants and 15 published applications in this corpus.
Search patents in B43M- Granted patents
- 15
- Published applications
- 15
- Assignees
- 12
- Inventors
- 41
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for processing envelopes containing contents3 Mar 2026US 12,565,392 B2Opex Corporation
- Method and apparatus for processing envelopes containing contents3 Sep 2024US 12,077,405 B2Opex Corporation
- Case unpacking system and method26 Mar 2024US 11,939,100 B2DLN Integrated Systems, Inc.
- Case unpacking system and method24 Jan 2023US 11,560,249 B2DLN Integrated Systems, Inc.
- Method and apparatus for processing envelopes containing contents1 Dec 2020US 10,850,936 B2Opex Corporation
- Method and apparatus for processing envelopes containing contents28 Nov 2024US 2024/0391719 A1Opex Corporation
- Case unpacking system and method30 Mar 2023US 2023/0101113 A1DLN Integrated Systems, Inc.
- Method and apparatus for processing envelopes containing contents16 Sep 2021US 2021/0284473 A1Opex Corporation
- Case unpacking system and method6 May 2021US 2021/0130025 A1DLN Integrated Systems, Inc.
- Method and apparatus for processing envelopes containing contents23 Apr 2015US 2015/0108704 A1Opex Corporation
Most cited
By later US patents
- Combined envelope opener and pencil sharpener unit20US 4,741,105 AWellmann Industrial Co. Ltd. · 1988
- Envelope opener11US 4,926,729 AElm Industry Co., Ltd. · 1990
- Envelope opening machine11US 5,470,182 AOmation Corporation · 1995
- Mail processing machine7US 6,725,752 B1Catawa, Inc. · 2004
- Envelope edge slitting apparatus5US 4,144,786 AStephens Industries, Inc. · 1979