B31D 3/00
Making articles of cellular structure
Official title: Making articles of cellular structure, e.g. insulating board
B31D3/00 (Making articles of cellular structure) appears on 342 US grants and 247 published applications in this corpus.
Search patents in B31D- Granted patents
- 342
- Published applications
- 247
- Assignees
- 146
- Inventors
- 417
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 10 | 0 |
| 1992 | 11 | 0 |
| 1993 | 7 | 0 |
| 1994 | 15 | 0 |
| 1995 | 13 | 0 |
| 1996 | 17 | 0 |
| 1997 | 17 | 0 |
| 1998 | 15 | 0 |
| 1999 | 10 | 0 |
| 2000 | 11 | 0 |
| 2001 | 5 | 5 |
| 2002 | 7 | 9 |
| 2003 | 7 | 0 |
| 2004 | 7 | 10 |
| 2005 | 8 | 12 |
| 2006 | 5 | 10 |
| 2007 | 4 | 12 |
| 2008 | 4 | 12 |
| 2009 | 4 | 11 |
| 2010 | 10 | 7 |
| 2011 | 8 | 11 |
| 2012 | 5 | 9 |
| 2013 | 5 | 8 |
| 2014 | 7 | 10 |
| 2015 | 9 | 8 |
| 2016 | 3 | 11 |
| 2017 | 6 | 7 |
| 2018 | 6 | 12 |
| 2019 | 3 | 7 |
| 2020 | 3 | 4 |
| 2021 | 6 | 16 |
| 2022 | 8 | 9 |
| 2023 | 12 | 20 |
| 2024 | 11 | 7 |
| 2025 | 7 | 16 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Extensible paper and its use in the production of expanded slit packaging wrap and void fill products22 Sep 2026US 12,741,798 B2HexcelPack, LLC
- Fabrication of three-dimensional kirigami structures with tunable properties18 Aug 2026US 12,709,080 B2Massachusetts Institute of Technology
- Single slit patterned, tension-activated, expanding articles14 Jul 2026US 12,679,621 B23M Innovative Properties Company
- Manufacturing system to form a honeycomb core and a method of forming the same3 Mar 2026US 12,565,018 B2The Boeing Company
- Honeycomb cell shock-protection paper pad structure, and fabrication method and fabrication apparatus3 Mar 2026US 12,565,370 B21teck Automation Technology Co., Ltd.
- Package box containing buffer-forming core for forming buffer packing material17 Sep 2026US 2026/0273887 A1
- Packaging material14 May 2026US 2026/0131962 A1IForm, Inc.
- Structure including tessellation of unit cells including lens-shaped units and connector units30 Apr 2026US 2026/0116034 A1The Royal Institution for the Advancement of Learning/Mcgill University
- Expandable layered packing product29 Jan 2026US 2026/0027798 A1Ideabox Studios LLC
- Corrugating and die-cutting system and method for operating the same18 Dec 2025US 2025/0381752 A1
Most cited
By later US patents
- Method and apparatus for fabricating honeycomb insulating material147US 4,450,027 A1984
- Process for fabricating honeycomb material104US 5,228,936 AHunter Douglas Inc. · 1993
- Composite packaging material having an expanded sheet with a separator sheet104US 5,688,578 A1997
- Cellular core structure providing gridlike bearing surfaces on opposing parallel planes of the formed core102US 5,028,474 A1991
- Honeycomb structure with Z-folded material and method of making same101US 4,631,217 AHunter Douglas Inc. · 1986