B29C 66/4312
For making flat seams in tubular or hollow articles
Official title: {for making flat seams in tubular or hollow articles, e.g. transversal seams}
B29C66/4312 (For making flat seams in tubular or hollow articles) appears on 1,788 US grants and 1,212 published applications in this corpus.
Search patents in B29C- Granted patents
- 1,788
- Published applications
- 1,212
- Assignees
- 828
- Inventors
- 2,756
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 34 | 0 |
| 1978 | 31 | 0 |
| 1979 | 15 | 0 |
| 1980 | 22 | 0 |
| 1981 | 36 | 0 |
| 1982 | 18 | 0 |
| 1983 | 18 | 0 |
| 1984 | 20 | 0 |
| 1985 | 41 | 0 |
| 1986 | 34 | 0 |
| 1987 | 43 | 0 |
| 1988 | 32 | 0 |
| 1989 | 37 | 0 |
| 1990 | 35 | 0 |
| 1991 | 43 | 0 |
| 1992 | 30 | 0 |
| 1993 | 40 | 0 |
| 1994 | 37 | 0 |
| 1995 | 23 | 0 |
| 1996 | 39 | 0 |
| 1997 | 37 | 0 |
| 1998 | 48 | 0 |
| 1999 | 47 | 0 |
| 2000 | 42 | 0 |
| 2001 | 46 | 16 |
| 2002 | 31 | 46 |
| 2003 | 56 | 47 |
| 2004 | 50 | 68 |
| 2005 | 37 | 61 |
| 2006 | 49 | 52 |
| 2007 | 28 | 45 |
| 2008 | 29 | 39 |
| 2009 | 20 | 49 |
| 2010 | 29 | 40 |
| 2011 | 30 | 44 |
| 2012 | 24 | 54 |
| 2013 | 30 | 47 |
| 2014 | 35 | 45 |
| 2015 | 37 | 53 |
| 2016 | 40 | 44 |
| 2017 | 35 | 63 |
| 2018 | 33 | 65 |
| 2019 | 54 | 51 |
| 2020 | 54 | 52 |
| 2021 | 30 | 47 |
| 2022 | 45 | 50 |
| 2023 | 35 | 36 |
| 2024 | 48 | 43 |
| 2025 | 42 | 32 |
| 2026 | 15 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid-tight separating closure29 Sep 2026US 12,746,610 B2Sartorius Stedim North America Inc.
- Vacuum sealer25 Aug 2026US 12,715,637 B2Ningbo Kedly Appliance Industry Co., Ltd.
- Method for producing packages, an apparatus and a kit of parts18 Aug 2026US 12,709,069 B2Tetra Laval Holdings & Finance S. A.
- Pressure element and sealing device for a packaging assembly having a pressure element14 Jul 2026US 12,679,044 B2Tetra Laval Holdings & Finance S. A.
- Heat-sealing apparatus for wrapping articles16 Jun 2026US 12,654,895 B2Barry-Wehmiller Company
- Ultrasonic sealing system and anvil thereof20 Aug 2026US 2026/0241643 A1Tetra Laval Holdings & Finance S. A.
- Ultrasonic sealing system and anvil thereof20 Aug 2026US 2026/0242085 A1Tetra Laval Holdings & Finance S. A.
- Ultrasonic sealing system and anvil thereof20 Aug 2026US 2026/0242086 A1Tetra Laval Holdings & Finance S. A.
- Method and Device for Producing a Bag with a Butt-Welded Connection13 Aug 2026US 2026/0233868 A1
- Bag system for peritonaeal dialysis6 Aug 2026US 2026/0224788 A1
Most cited
By later US patents
- Position feedback system and method for use thereof1,075US 6,625,517 B12003
- Reclosable bag, material, and method of and means for making same223US 4,617,683 AMinigrip, Inc. · 1986
- Reclosable bags, apparatus and method193US 4,355,494 AMinigrip, Inc. · 1982
- Method of and means for making reclosable bags and method therefor182US 4,655,862 AMinigrip, Inc. · 1987
- Method and apparatus for forming a reclosable package177US 5,127,208 AReynolds Consumer Products, Inc. · 1992