B31B 70/28
Around mandrels
Official title: {around mandrels}
B31B70/28 (Around mandrels) appears on 13 US grants and 12 published applications in this corpus.
Search patents in B31B- Granted patents
- 13
- Published applications
- 12
- Assignees
- 11
- Inventors
- 25
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 3 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Zipper tape-equipped bag body, article housing method for zipper tape-equipped bag body, manufacturing method for zipper tape-equipped bag body, and manufacturing device for zipper tape-equipped bag body18 Nov 2025US 12,472,718 B2Idemitsu Unitech Co., Ltd.
- Folding wedge device for a bag packaging machine20 May 2025US 12,304,169 B2SN Maschinenbau GmbH
- Process and equipment for manufacturing a reinforced sachet10 Dec 2024US 12,162,238 B2Societe des Produits Nestle S. A.
- Zipper tape-equipped bag body, article housing method for zipper tape-equipped bag body, manufacturing method for zipper tape-equipped bag body, and manufacturing device for zipper tape-equipped bag body29 Mar 2022US 11,285,686 B2Idemitsu Unitech Co., Ltd.
- Three-dimensional body, container, and method for manufacturing container23 Nov 2021US 11,180,277 B2Tokan Kogyo Co., Ltd.
- A process and equipment for manufacturing a reinforced sachet20 Jul 2023US 2023/0226793 A1Societe des Produits Nestle S. A.
- Folding wedge device for a bag packaging machine9 Feb 2023US 2023/0043975 A1SN Maschinenbau GmbH
- Zipper tape-equipped bag body, article housing method for zipper tape-equipped bag body, manufacturing method for zipper tape-equipped bag body, and manufacturing device for zipper tape-equipped bag body16 Jun 2022US 2022/0184913 A1Idemitsu Unitech Co., Ltd.
- Cylindrical body, container, and method for manufacturing container2 Jul 2020US 2020/0207505 A1Tokan Kogyo Co., Ltd.
- A cornet bending machine with independent motion control system from mechanics16 Jan 2020US 2020/0016861 A1Mondi AG
Most cited
By later US patents
- Flat bottom bag51US 3,970,241 A1976
- Machine and method for manufacturing square or flat bottom bags having movable positions or stations including the use of a mandrel14US 4,230,030 A1980
- Bag bottom forming machine and transfer apparatus3US 4,279,608 ADevelopak Corporation · 1981
- Zipper tape-equipped bag body, article housing method for zipper tape-equipped bag body, manufacturing method for zipper tape-equipped bag body, and manufacturing device for zipper tape-equipped bag body2US 11,285,686 B2Idemitsu Unitech Co., Ltd. · 2022
- Square bottom sealable bag forming machine2US 7,335,149 B12008