B29C 66/43121
Closing the ends of tubular or hollow single articles
Official title: {Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags (closing tube ends B29C57/10)}
B29C66/43121 (Closing the ends of tubular or hollow single articles) appears on 677 US grants and 521 published applications in this corpus.
Search patents in B29C- Granted patents
- 677
- Published applications
- 521
- Assignees
- 419
- Inventors
- 1,272
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 14 | 0 |
| 1978 | 12 | 0 |
| 1979 | 5 | 0 |
| 1980 | 9 | 0 |
| 1981 | 14 | 0 |
| 1982 | 10 | 0 |
| 1983 | 8 | 0 |
| 1984 | 6 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 18 | 0 |
| 1988 | 13 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 17 | 0 |
| 1992 | 13 | 0 |
| 1993 | 19 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 14 | 0 |
| 1998 | 19 | 0 |
| 1999 | 19 | 0 |
| 2000 | 12 | 0 |
| 2001 | 17 | 8 |
| 2002 | 10 | 17 |
| 2003 | 22 | 15 |
| 2004 | 20 | 27 |
| 2005 | 15 | 20 |
| 2006 | 13 | 13 |
| 2007 | 7 | 19 |
| 2008 | 9 | 18 |
| 2009 | 8 | 23 |
| 2010 | 12 | 17 |
| 2011 | 15 | 13 |
| 2012 | 9 | 23 |
| 2013 | 9 | 23 |
| 2014 | 10 | 24 |
| 2015 | 13 | 20 |
| 2016 | 19 | 18 |
| 2017 | 13 | 31 |
| 2018 | 18 | 32 |
| 2019 | 13 | 24 |
| 2020 | 30 | 22 |
| 2021 | 17 | 18 |
| 2022 | 16 | 27 |
| 2023 | 13 | 19 |
| 2024 | 27 | 20 |
| 2025 | 19 | 20 |
| 2026 | 8 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vacuum sealer25 Aug 2026US 12,715,637 B2Ningbo Kedly Appliance Industry Co., Ltd.
- Bioprocessing system9 Jun 2026US 12,649,897 B2Cellular Origins Limited
- Sealing element for sealing a package and device for sealing a package2 Jun 2026US 12,643,702 B2Ecolean AB
- Method and apparatus for manufacturing pouch-type secondary battery2 Jun 2026US 12,646,772 B2LG Energy Solution, Ltd.
- Welding station and method for producing a package comprising a heat-sealed wrapping14 Apr 2026US 12,600,516 B2Soremartec S.A.
- Ultrasonic sealing system and anvil thereof20 Aug 2026US 2026/0241643 A1Tetra Laval Holdings & Finance S. A.
- Plastic storage bag and method of manufacturing same6 Aug 2026US 2026/0225324 A1
- Pouch Sealing Apparatus Capable of Targeting Portion to be Heated30 Jul 2026US 2026/0221484 A1LG Energy Solution, Ltd.
- Secondary Battery Sealing Device and Manufacturing Method for Secondary Batteries Using the Sealing Device16 Jul 2026US 2026/0204693 A1LG Energy Solution, Ltd.
- Heat seal assembly with perforating teeth for mono-material enclosure and method for sealing the mono-material enclosure18 Jun 2026US 2026/0167371 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Reclosable zipper with tamper evident feature123US 5,435,864 AMinigrip, Inc. · 1995
- Plastic bag with bottom header123US 5,682,730 ATenneco Packaging · 1997
- Inflated dunnage and method for its production107US 5,693,163 A1997
- Method of forming a burstable pouch100US 4,539,793 AS. C. Johnson & Son, Inc. · 1985
- Variable motion system and method97US 6,876,896 B1AB TetraPak · 2005