B31D 3/0223
Making honeycomb cores
Official title: {Making honeycomb cores, e.g. by piling a plurality of web sections or sheets}
B31D3/0223 (Making honeycomb cores) appears on 68 US grants and 48 published applications in this corpus.
Search patents in B31D- Granted patents
- 68
- Published applications
- 48
- Assignees
- 44
- Inventors
- 122
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 9 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 2 | 2 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 2 | 3 |
| 2012 | 2 | 4 |
| 2013 | 2 | 4 |
| 2014 | 2 | 4 |
| 2015 | 3 | 3 |
| 2016 | 1 | 2 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 0 | 4 |
| 2020 | 0 | 0 |
| 2021 | 4 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B31D 3/0246Plane webs having essentially longitudinal adhesive strips being folded transversely into stacks15
- B31D 3/023By cutting webs longitudinally into strips, piling these strips and uniting them11
- B31D 3/0269Forming piles by winding a web on a reel9
- B31D 3/0276Plane webs having essentially transverse adhesive strips being folded transversely into stacks8
Recent patents
- Manufacturing system to form a honeycomb core and a method of forming the same3 Mar 2026US 12,565,018 B2The Boeing Company
- Structure formation apparatus, method and structure14 Jan 2025US 12,194,707 B2Corridoor Limited
- Honeycomb, in particular deformable honeycomb, for lightweight components, corresponding production method, and sandwich component10 Sep 2024US 12,083,777 B2Euro-Composites S.A.
- Honeycomb core with hierarchical cellular structure8 Mar 2022US 11,267,212 B2Econcore N.V.
- Hierarchical honeycomb core with sandwich cell walls7 Dec 2021US 11,192,316 B2Econcore N.V.
- Buffer forming method and buffer30 Oct 2025US 2025/0332805 A1
- Buffer forming machine30 Oct 2025US 2025/0332806 A1
- Manufacturing system to form a honeycomb core and a method of forming the same10 Apr 2025US 2025/0115016 A1The Boeing Company
- Structure formation apparatus, method and structure7 Dec 2023US 2023/0391040 A1Corridoor Limited
- Flexible Honeycomb Structure and Manufacturing Method for Flexible Honeycomb Structure18 May 2023US 2023/0150223 A1Beijing Ander Technologies
Most cited
By later US patents
- Method for producing a strip-shaped object48US 6,767,425 B2Alcan Technology & Management Ltd. · 2004
- Multiple cell honeycomb insulating panel and method of hanging46US 5,482,750 AHunter Douglas Inc. · 1996
- System and method for advancing the leading edge of a corrugated web31US 5,245,897 AE. I. Du Pont de Nemours and Company · 1993
- Apparatus for applying adhesive to a honeycomb half-cell structure31US 5,275,657 AE. I. Du Pont de Nemours and Company · 1994
- Honeycomb structure and method of making31US 5,894,044 AThe Procter & Gamble Company · 1999