B31B 70/83
Cutting window openings
B31B70/83 (Cutting window openings) appears on 21 US grants and 31 published applications in this corpus.
Search patents in B31B- Granted patents
- 21
- Published applications
- 31
- Assignees
- 24
- Inventors
- 50
- Latest grant
- 2 Jun 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 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 3 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recyclable compostable paper bag2 Jun 2026US 12,643,302 B2The Paper People LLC
- Recyclable compostable paper bag13 Feb 2024US 11,897,226 B2The Paper People LLC
- Flexible packaging structure with a built-in opening and reclose feature7 Nov 2023US 11,807,438 B2Sonoco Development, Inc.
- Method for making windowed packaging material21 Sep 2021US 11,123,942 B2JASA Group B.V.
- Device for treating substrates28 Jan 2020US 10,543,674 B2Koenig & Bauer Aktiengesellschaft
- Process for making a recyclable compostable paper bag17 Sep 2026US 2026/0273885 A1The Paper People LLC
- Recyclable compostable paper bag17 Sep 2026US 2026/0273886 A1The Paper People LLC
- Flexible paper-polymer multilayer package, preferably for dried food products12 Dec 2024US 2024/0409287 A1Barilla G. e R. Fratelli S.p.A.
- Recyclable compostable paper bag25 Apr 2024US 2024/0131814 A1The Paper People LLC
- Recloseable package with improved opening feature16 Mar 2023US 2023/0081411 A1
Most cited
By later US patents
- Process for making windowed form, fill and seal bags34US 5,410,857 AVitex Packaging, Inc. · 1995
- Queue-based bag forming system and method26US 7,115,086 B1Automated Solutions, LLC · 2006
- Holder for a panel cutting plate25US 4,823,659 ARofalex International Inc. · 1989
- Flexible die and supporting cylinder25US 5,782,156 AWinkler & Dunnebier · 1998
- Apparatus for cutting out windows in envelopes21US 4,671,152 AWinkler & Duennebier Maschinenfabrik und Eisengiesserei KG · 1987