B29C 66/2424
Being a closed polygonal chain
Official title: {being a closed polygonal chain}
B29C66/2424 (Being a closed polygonal chain) appears on 400 US grants and 372 published applications in this corpus.
Search patents in B29C- Granted patents
- 400
- Published applications
- 372
- Assignees
- 333
- Inventors
- 897
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 9 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 11 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 13 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 2 |
| 2002 | 7 | 7 |
| 2003 | 11 | 13 |
| 2004 | 11 | 15 |
| 2005 | 5 | 17 |
| 2006 | 3 | 13 |
| 2007 | 7 | 15 |
| 2008 | 7 | 16 |
| 2009 | 7 | 14 |
| 2010 | 7 | 18 |
| 2011 | 11 | 24 |
| 2012 | 14 | 10 |
| 2013 | 14 | 15 |
| 2014 | 13 | 18 |
| 2015 | 14 | 26 |
| 2016 | 10 | 17 |
| 2017 | 10 | 12 |
| 2018 | 11 | 20 |
| 2019 | 21 | 15 |
| 2020 | 17 | 18 |
| 2021 | 11 | 15 |
| 2022 | 9 | 14 |
| 2023 | 13 | 12 |
| 2024 | 8 | 13 |
| 2025 | 10 | 10 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pouch-shaped battery sealing apparatus including stopper and pouch-shaped battery sealing method using the same18 Aug 2026US 12,712,194 B2LG Energy Solution, Ltd.
- Pulse welding method and welding tool for pulse welding for a medical pack formed as a bag28 Jul 2026US 12,691,642 B2Fresenius Kabi Deutschland GmbH
- Pouch-shaped battery case sealing apparatus and pouch-shaped secondary battery sealing method using the same7 Apr 2026US 12,597,625 B2LG Energy Solution, Ltd.
- Flat membrane element and method for producing same13 Jan 2026US 12,521,679 B2Kubota Corporation
- Tamper evident card package and method6 Jan 2026US 12,515,860 B2Cpi Card Group—Minnesota, Inc.
- Tamper evident card package and method2 Apr 2026US 2026/0091924 A1Cpi Card Group—Minnesota, Inc.
- Fabric assembly and method of splicing same19 Feb 2026US 2026/0048930 A1Mesa Industries, Inc.
- Friction stir welding device for producing a weld joint1 Jan 2026US 2026/0001160 A1Royos Joining Solutions GmbH
- Method of manufacturing a hybrid metal-composite component unit suitable for an aeronautical application25 Dec 2025US 2025/0387983 A1Airbus Helicopters Deutschland GmbH
- Ultrasonic welding method24 Jul 2025US 2025/0236076 A1Delta Electronics, Inc.
Most cited
By later US patents
- Method for forming pharmaceutical capsules from hydrophilic polymers128US 4,738,817 AWarner-Lambert Company · 1988
- Collapsible container127US 4,732,299 A1988
- System for inflation and sealing of air cushions123US 3,938,298 AMinnesota Mining and Manufacturing Company · 1976
- Reclosable zipper with tamper evident feature123US 5,435,864 AMinigrip, Inc. · 1995
- Method and apparatus for making a reclosable package118US 4,437,293 AW. R. Grace & Co., Cryovac Div. · 1984