B31B 50/28
Around mandrels
Official title: around mandrels, e.g. for forming bottoms
B31B50/28 (Around mandrels) appears on 368 US grants and 263 published applications in this corpus.
Search patents in B31B- Granted patents
- 368
- Published applications
- 263
- Assignees
- 169
- Inventors
- 494
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 9 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 13 | 0 |
| 1997 | 22 | 0 |
| 1998 | 24 | 0 |
| 1999 | 14 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 2 |
| 2003 | 6 | 6 |
| 2004 | 3 | 6 |
| 2005 | 3 | 5 |
| 2006 | 4 | 9 |
| 2007 | 2 | 5 |
| 2008 | 2 | 11 |
| 2009 | 2 | 7 |
| 2010 | 4 | 11 |
| 2011 | 4 | 13 |
| 2012 | 8 | 10 |
| 2013 | 9 | 8 |
| 2014 | 8 | 19 |
| 2015 | 6 | 16 |
| 2016 | 4 | 8 |
| 2017 | 13 | 14 |
| 2018 | 9 | 17 |
| 2019 | 9 | 20 |
| 2020 | 13 | 13 |
| 2021 | 13 | 8 |
| 2022 | 8 | 8 |
| 2023 | 18 | 13 |
| 2024 | 7 | 7 |
| 2025 | 10 | 21 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for forming a body section of a paper cup and a paper sleeve23 Jun 2026US 12,661,862 B2Tokan Kogyo Co., Ltd.
- Cornet cone package production machine with vertical feeding14 Apr 2026US 12,600,106 B2
- Lid corner with internal layer cutout shape10 Mar 2026US 12,570,430 B2The Procter & Gamble Company
- Dispensers24 Feb 2026US 12,558,862 B2Multi Packaging Solutions UK Limited
- Method for packaging articles in boxes and packaging device operating according to such a method17 Feb 2026US 12,552,567 B2R. A. Jones & Co. Inc.
- Method and apparatus for forming containers20 Aug 2026US 2026/0241659 A1
- Arrangement to mount onto a vertical-type automatic adhesive-free corrugated cardboard box machine and box mounting method21 May 2026US 2026/0138349 A1Cartocor S.A
- Method and apparatus for producing a container with a shell made of a fiber-based material with a flange portion2 Apr 2026US 2026/0091567 A1OPTIMA consumer GmbH
- Methods and machine for forming a container from a blank and applying an identification tag12 Feb 2026US 2026/0042271 A1
- Method for transporting a cellulose blank structure via a buffering module and buffering module1 Jan 2026US 2026/0001295 A1
Most cited
By later US patents
- Articles of manufacture and methods for manufacturing laminate structures including inorganically filled sheets312US 5,830,548 AE. Khashoggi Industries · 1998
- Sheets having a highly inorganically filled organic polymer matrix172US 5,508,072 AE. Khashoggi Industries · 1996
- Articles of manufacture fashioned from sheets having a highly inorganically filled organic polymer matrix171US 5,506,046 AE. Khashoggi Industries · 1996
- Starch-based compositions having uniformly dispersed fibers used to manufacture high strength articles having a fiber-reinforced, starch-bound cellular matrix165US 5,679,145 AE. Khashoggi Industries · 1997
- Highly insulative cementitious matrices and methods for their manufacture157US 5,641,584 AE. Khashoggi Industries · 1997