B31B 70/04
Feeding sheets or blanks
B31B70/04 (Feeding sheets or blanks) appears on 49 US grants and 42 published applications in this corpus.
Search patents in B31B- Granted patents
- 49
- Published applications
- 42
- Assignees
- 41
- Inventors
- 88
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 4 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 4 |
| 2021 | 7 | 7 |
| 2022 | 5 | 3 |
| 2023 | 1 | 2 |
| 2024 | 6 | 6 |
| 2025 | 3 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- All-in-one machine for folding and boxing fresh-keeping bags1 Sep 2026US 12,722,353 B2
- Flexible bag having a convertible bottom, method and machine for manufacturing same25 Aug 2026US 12,715,657 B2Holweg Group
- Paper folding device9 Dec 2025US 12,492,096 B2Duplo Seiko Corporation
- Bag making apparatus and bag making method28 Oct 2025US 12,454,113 B2Totani Corporation
- Four side seal packaging bag and preparation device and method thereof16 Sep 2025US 12,415,328 B2Shanghai Zhoutai Light Industry Machinery Manufacturing Co., Ltd.
- Method for manufacturing a container and manufacturing device24 Sep 2026US 2026/0285000 A1Mondi AG
- Flap spreading device in square bottom forming device of bag making machine, square bottom forming device in bag making machine, and bag making machine23 Apr 2026US 2026/0109127 A1Newlong Industrial Company Limited
- All-in-one machine for folding and boxing fresh-keeping bags15 Jan 2026US 2026/0014771 A1Life Help (Jiangsu) Household Products Co., Ltd.
- Production method and production system for fiber based cellulose material products26 Jun 2025US 2025/0205988 A1Blue Ocean Closures AB
- Four side seal packaging bag and preparation device and method thereof9 Jan 2025US 2025/0010568 A1Shanghai Zhoutai Light Industry Machinery Manufacturing Co., Ltd.
Most cited
By later US patents
- Apparatus for transporting envelope blanks in an envelope making machine63US 6,572,520 B2Winkler + Dunnebler Aktiengesellschaft · 2003
- System for the production of a medical product, as well as method for operation of such a system17US 10,531,978 B2KIEFEL GmbH · 2020
- Method and apparatus for manufacturing an agricultural bag11US 4,424,051 AB.A.G. Corp. · 1984
- Method of and apparatus for making a bottom of a tubular section for formation of a bag or sack10US 6,042,526 AB + B Maschinenbau GmbH · 2000
- Method of affixing envelopes and letterheads to a carrier sheet and assembly formed thereby8US 4,514,182 A1985