B31B 50/64
By applying heat or pressure
Official title: by applying heat or pressure, e.g. by welding (to unite areas where adhesives are applied B31B50/62)
B31B50/64 (By applying heat or pressure) appears on 243 US grants and 219 published applications in this corpus.
Search patents in B31B- Granted patents
- 243
- Published applications
- 219
- Assignees
- 145
- Inventors
- 458
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 2 |
| 2002 | 7 | 0 |
| 2003 | 7 | 3 |
| 2004 | 3 | 8 |
| 2005 | 4 | 4 |
| 2006 | 3 | 5 |
| 2007 | 0 | 6 |
| 2008 | 2 | 5 |
| 2009 | 2 | 3 |
| 2010 | 3 | 1 |
| 2011 | 2 | 12 |
| 2012 | 2 | 10 |
| 2013 | 5 | 12 |
| 2014 | 2 | 12 |
| 2015 | 6 | 25 |
| 2016 | 4 | 10 |
| 2017 | 7 | 12 |
| 2018 | 7 | 16 |
| 2019 | 11 | 8 |
| 2020 | 20 | 7 |
| 2021 | 9 | 8 |
| 2022 | 5 | 11 |
| 2023 | 15 | 13 |
| 2024 | 3 | 7 |
| 2025 | 12 | 12 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B31B 50/642Using sealing jaws or sealing dies33
- B31B 50/66By high-frequency electric heating20
- B31B 50/644Making seals parallel to the direction of movement, i.e. longitudinal sealing7
- B31B 50/645Making seals transversally to the direction of movement3
- B31B 50/648Using tools mounted on belts or chains3
- B31B 50/649Using tools mounted on a drum3
Recent patents
- Method for manufacturing paper container30 Jun 2026US 12,668,035 B2Taiwan Chemwell Industrial Co., Ltd.
- Method of producing a packaging container, a packaging container and a curling tool28 Apr 2026US 12,612,204 B2GPI Systems AB
- Apparatus and method for optimized container construction10 Feb 2026US 12,545,001 B2
- Counter-pressure roller, an arrangement and a method thereof3 Feb 2026US 12,539,677 B2Tetra Laval Holdings & Finance S. A.
- Method and apparatus for forming containers3 Feb 2026US 12,539,684 B2
- Fibre based packaging container, circular base component, quadrilateral wall blank, method of manufacture of a fibre based packaging container and container obtainable from said method1 Oct 2026US 2026/0296713 A1Transcend Packaging Limited
- Method and apparatus for forming containers20 Aug 2026US 2026/0241659 A1
- Compression drive mechanism for container panel sealing6 Aug 2026US 2026/0225338 A1
- Method of producing a packaging container, a packaging container and a curling tool6 Aug 2026US 2026/0225753 A1GPI Systems AB
- Assembly and method for sealing panels of a container18 Jun 2026US 2026/0166838 A1
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
- Sealed flexible container with non-destructive peelable opening94US 4,705,174 AFres-co System USA, Inc. · 1987
- Container with heat seal surface having a substantially planar portion80US 6,234,386 B1Sonoco Development, Inc. · 2001
- Packages made with both high-frequency/radio-frequency seals and conventional heat/pressure seals using combinations of polar and non-polar polymers79US 5,769,772 ATenneco Packaging · 1998
- Sealed flexible container with non-destructive peelable opening68US 4,518,087 AFres-co System USA, Inc. · 1985