A42B 3/322
Collapsible helmets
Official title: {Collapsible helmets}
A42B3/322 (Collapsible helmets) appears on 71 US grants and 70 published applications in this corpus.
Search patents in A42B- Granted patents
- 71
- Published applications
- 70
- Assignees
- 40
- Inventors
- 135
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 4 |
| 2014 | 1 | 2 |
| 2015 | 1 | 3 |
| 2016 | 0 | 3 |
| 2017 | 5 | 4 |
| 2018 | 2 | 4 |
| 2019 | 3 | 7 |
| 2020 | 4 | 4 |
| 2021 | 7 | 6 |
| 2022 | 3 | 8 |
| 2023 | 4 | 3 |
| 2024 | 5 | 7 |
| 2025 | 5 | 5 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Machine vendible expandable helmet and manufacture of same22 Sep 2026US 12,740,611 B2Membrain Safety Solutions, LLC
- Collapsible helmet and corresponding production method21 Jul 2026US 12,685,363 B2Monopro Ltd.
- Device for protecting user's head, airbag for the same, and method of manufacturing the airbag30 Jun 2026US 12,667,154 B2Hyundai Mobis Co., Ltd.
- Single-use, disposable helmets, hoods, and helmet/hood assemblies, and methods of making and using the same6 Jan 2026US 12,514,320 B2Zoya, Inc.
- Protection device21 Oct 2025US 12,446,635 B2Daicel Corporation
- Protection device, protection assembly and method13 Aug 2026US 2026/0232064 A1Autoliv Development AB
- Single-use, disposable helmets, hoods, and helmet/hood assemblies, and methods of making and using the same23 Apr 2026US 2026/0108008 A1Zoya, Inc.
- Device for protecting user's head, airbag for the same, and method of manufacturing the airbag13 Nov 2025US 2025/0344795 A1Hyundai Mobis Co., Ltd.
- Collapsible helmet and corresponding production method13 Nov 2025US 2025/0344801 A1Monopro Ltd.
- Machine vendible expandable helmet and manufacture of same28 Aug 2025US 2025/0268331 A1Membrain Safety Solutions, LLC
Most cited
By later US patents