Device for protecting user's head, airbag for the same, and method of manufacturing the airbag
US-2025344795-A1 · Nov 13, 2025 · US
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Collapsible helmets
Collapsible helmets · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A42B3/322 |
| Official title | {Collapsible helmets} |
| Display label | Collapsible helmets |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Protection device
US-12446635-B2 · Oct 21, 2025 · US
Surgical personal protection apparatus
US-12268266-B2 · Apr 8, 2025 · US
Protection Device
US-2024285000-A1 · Aug 29, 2024 · US
Surgical Personal Protection Apparatus
US-2024114988-A1 · Apr 11, 2024 · US
Surgical personal protection apparatus
US-11910861-B2 · Feb 27, 2024 · US
Surgical Personal Protection Apparatus
US-2023292876-A1 · Sep 21, 2023 · US
Surgical personal protection apparatus
US-11684106-B2 · Jun 27, 2023 · US
Surgical Personal Protection Apparatus
US-2021177083-A1 · Jun 17, 2021 · US
Ear muff attachment having dual axis of rotation
US-10959477-B2 · Mar 30, 2021 · US
Surgical personal protection apparatus
US-10874163-B2 · Dec 29, 2020 · US
Surgical Personal Protection Apparatus
US-2019174860-A1 · Jun 13, 2019 · US
Medical/surgical personal protection system including a helmet, the helmet having a fan and a fan housing that are curved to curve around the head of the individual wearing the helmet
US-10201207-B2 · Feb 12, 2019 · US
Medical/surgical personal protection system including a helemt, the helmet having a fan and a fan housing that are curved to curve around the head of the head of the individual wearing the helmet
US-2018035741-A1 · Feb 8, 2018 · US
Medical/surgical personal protection system including a helmet, a hood and a speaker that broadcasts speech outside of the hood
US-9706808-B2 · Jul 18, 2017 · US
Helmet
US-9681697-B2 · Jun 20, 2017 · US
Ear muff attachment having dual axis of rotation
US-2017049179-A1 · Feb 23, 2017 · US
Medical/surgical personal protection system including a helmet, a hood and a speaker that broadcasts speech outside of the hood
US-2016165999-A1 · Jun 16, 2016 · US
Helmet
US-2016037853-A1 · Feb 11, 2016 · US
Medical/surgical personal protection system including a helmet and a hood, the helmet having chin bar-mounted controls
US-9173437-B2 · Nov 3, 2015 · US