B31F 1/008
Shaping of tube ends
Official title: {Shaping of tube ends, e.g. flanging, belling, closing, rim-rolling or corrugating; Fixing elements to tube ends}
B31F1/008 (Shaping of tube ends) appears on 65 US grants and 41 published applications in this corpus.
Search patents in B31F- Granted patents
- 65
- Published applications
- 41
- Assignees
- 54
- Inventors
- 105
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 4 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 5 |
| 2019 | 3 | 2 |
| 2020 | 0 | 1 |
| 2021 | 6 | 0 |
| 2022 | 1 | 3 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of producing a packaging container, a packaging container and a curling tool28 Apr 2026US 12,612,204 B2GPI Systems AB
- Can27 Jan 2026US 12,534,263 B2Envican GmbH
- Method of producing a packaging container, a packaging container and a curling tool28 Jan 2025US 12,208,933 B2GPI Systems AB
- Method of producing a packaging container and a packaging container23 Jan 2024US 11,878,840 B2GPI Systems AB
- Rim flattener apparatus and method17 May 2022US 11,331,874 B2Paper Machinery Corporation
- System and a method for manufacturing screw caps from cardboard or paperboard13 Aug 2026US 2026/0233485 A1Länsipahvi Oy
- Method of producing a packaging container, a packaging container and a curling tool6 Aug 2026US 2026/0225753 A1GPI Systems AB
- Liquid-tight container, preform, method for producing same, and uses3 Jul 2025US 2025/0214740 A1
- Threaded paper lid for container19 Jun 2025US 2025/0197071 A1Seda International Packaging Group SpA
- Method Of Producing A Packaging Container, A Packaging Container And A Curling Tool6 Mar 2025US 2025/0074643 A1GPI Systems AB
Most cited
By later US patents
- Method and apparatus for sealing the sidewall and bottom seam portions of two-piece containers during manufacture thereof96US 4,409,045 AMaryland Cup Corporation · 1983
- Carton having buckle-controlled brim curl and method and blank for forming the same65US 5,868,309 AFort James Corporation · 1999
- Containers and blanks with a curled edge and method of making same56US 5,184,995 AJames River Corporation of Virginia · 1993
- Method of forming cardboard tampon applicators having a dome-shaped forward tip44US 5,290,501 APlaytex Family Products Corporation · 1994
- Paper receptacle42US 6,093,460 AToyo Aluminum Foil Products Kabushiki Kaisha · 2000