Hearing protection device, collision warning system and method of retrofitting a hearing protection device with a detection unit
US-2026000142-A1 · Jan 1, 2026 · US
Integral hearing protection
Integral hearing protection · 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 | A42B3/166 |
| Official title | {Integral hearing protection} |
| Display label | Integral hearing protection |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hearing protection device, collision warning system and method of retrofitting a hearing protection device with a detection unit
US-12426656-B2 · Sep 30, 2025 · US
Hinged Attachment of Headgear to a Helmet
US-2025268330-A1 · Aug 28, 2025 · US
Hinged attachment of headgear to a helmet
US-12376639-B2 · Aug 5, 2025 · US
Systems and methods for smart helmet
US-2025185749-A1 · Jun 12, 2025 · US
Systems and methods for smart helmet
US-12256799-B2 · Mar 25, 2025 · US
Adjustable helmet-mounted circumaural adaptor
US-11985474-B2 · May 14, 2024 · US
Hearing protection device, collision warning system and method of retrofitting a hearing protection device with a detection unit
US-2024041147-A1 · Feb 8, 2024 · US
Hearing safety device
US-11850119-B2 · Dec 26, 2023 · US
Hinged Attachment of Headgear to a Helmet
US-2023255294-A1 · Aug 17, 2023 · US
Helmet with an integrated power source for connected electronic devices
US-2023251063-A1 · Aug 10, 2023 · US
Ballistic helmet having an integrated electronic circuit configured to power and operate conductively connected electronic devices
US-11624589-B2 · Apr 11, 2023 · US
Hearing safety device
US-2023072510-A1 · Mar 9, 2023 · US
Outdoor power equipment headset
US-11559101-B2 · Jan 24, 2023 · US
Systems and methods for smart helmet
US-2022361622-A1 · Nov 17, 2022 · US
Adjustable helmet-mounted circumaural adaptor
US-2022345807-A1 · Oct 27, 2022 · US
Safety Headwear Systems and Coupling Mechanisms Therefor
US-2022295934-A1 · Sep 22, 2022 · US
Active noise control in a helmet
US-11432610-B2 · Sep 6, 2022 · US
Mounting rail for attaching accessories to a safety helmet
US-11337478-B2 · May 24, 2022 · US
Mounting system for accessories on a safety helmet
US-11246367-B2 · Feb 15, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A42B3/166?
- CPC A42B3/166 is the Cooperative Patent Classification code for “Integral hearing protection.”
- How many patents are filed under CPC A42B3/166 (Integral hearing protection)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC A42B3/166 growing?
- Publication counts under this code: 2 in 2024 vs 5 in 2025 (latest complete years).