B29C 44/357
Auxetic foams, i.e. material with negative poisson ratio
Official title: {Auxetic foams, i.e. material with negative Poisson ratio; anti rubber; dilatational; re-entrant}
B29C44/357 (Auxetic foams, i.e. material with negative poisson ratio) appears on 36 US grants and 53 published applications in this corpus.
Search patents in B29C- Granted patents
- 36
- Published applications
- 53
- Assignees
- 22
- Inventors
- 101
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
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| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
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| 2003 | 0 | 0 |
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| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 3 |
| 2012 | 2 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 5 |
| 2016 | 1 | 3 |
| 2017 | 2 | 6 |
| 2018 | 4 | 7 |
| 2019 | 4 | 3 |
| 2020 | 1 | 4 |
| 2021 | 6 | 1 |
| 2022 | 3 | 3 |
| 2023 | 2 | 2 |
| 2024 | 2 | 10 |
| 2025 | 2 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Material systems and methods of manufacture for auxetic foams11 Aug 2026US 12,703,132 B2The Florida State University Research Foundation, Inc.
- Auxetic stretchable substrate with flexible joint structure and method of manufacturing same31 Mar 2026US 12,589,532 B2Korea Institute of Science and Technology
- Shin guard made of auxetic material and unit structure thereof24 Mar 2026US 12,582,896 B2
- Stretchable substrate and method of manufacturing the same13 May 2025US 12,297,101 B2Korea Institute of Science and Technology
- Negative Poisson ratio piezoresistive sensor and method of manufacture22 Apr 2025US 12,281,948 B2The Florida State University Research Foundation, Inc.
- Material systems and methods of manufacture for auxetic foams1 Oct 2026US 2026/0295909 A1The Florida State University Research Foundation, Inc.
- Material systems and methods of manufacture for auxetic foams27 Feb 2025US 2025/0065543 A1The Florida State University Research Foundation, Inc.
- Negative poisson's ratio materials for doors and windows5 Dec 2024US 2024/0401397 A1
- Drug delivery in negative poisson`s ratio structures11 Jul 2024US 2024/0226021 A9
- Auxetic web structure or field structure, and use11 Jul 2024US 2024/0226393 A9Christian-Albrechts-Universitaet zu Kiel
Most cited
By later US patents
- Polyhedron cell structure and method of making same120US 4,668,557 AUniversity of Iowa Research Foundation · 1987
- Rotational expansion auxetic structures79US 8,652,602 B12014
- Garments having auxetic foam layers43US 7,455,567 B2Hanesbrands Inc. · 2008
- Auxetic structures and footwear with soles having auxetic structures31US 9,402,439 B2NIKE, Inc. · 2016
- Process for the preparation of auxetic foams29US 8,277,719 B2Auxetic Technologies Limited · 2012