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
Ear protection devices
Ear protection devices · 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 | A42B3/16 |
| Official title | Ear protection devices |
| Display label | Ear protection devices |
| Total patents | 67 |
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 | 3 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 9 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 5 |
| 2024 | 8 |
| 2025 | 15 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pivoting headset positioning assembly and headset interface with rotatable connector
US-2025234123-A1 · Jul 17, 2025 · US
Systems and methods for smart helmet
US-2025185749-A1 · Jun 12, 2025 · US
Protective sports helmet
US-2025160467-A1 · May 22, 2025 · US
Pivot-arm assembly for a helmet mounted headset
US-12290130-B2 · May 6, 2025 · US
Modular helmet system
US-12285070-B2 · Apr 29, 2025 · US
Ear protection device
US-12274602-B2 · Apr 15, 2025 · US
Earmuffs
US-12232931-B2 · Feb 25, 2025 · US
Powered helmet accessory rail with slot interface
US-2025009063-A1 · Jan 9, 2025 · US
Protective water headwear
US-2024399212-A1 · Dec 5, 2024 · US
Modular helmet system
US-2024188669-A1 · Jun 13, 2024 · US
Football helmet with impact attenuation system
US-2024180280-A1 · Jun 6, 2024 · US
Pixel optical sensing of visibly transparent object utilizing reflective materials for personal protective equipment
US-11963571-B2 · Apr 23, 2024 · US
Hearing protector with positional and sound monitoring sensors for proactive sound hazard avoidance
US-11925232-B2 · Mar 12, 2024 · US
Football helmet with impact attenuation system
US-11910859-B2 · Feb 27, 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
Helmet Accessory Mounting System
US-2024008581-A1 · Jan 11, 2024 · US
Systems and methods for smart helmet
US-2022361622-A1 · Nov 17, 2022 · US
Ear protection device
US-2022354699-A1 · Nov 10, 2022 · US
Adjustable helmet for a hockey or lacrosse player
US-11375766-B2 · Jul 5, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A42B3/16?
- CPC A42B3/16 is the Cooperative Patent Classification code for “Ear protection devices.”
- How many patents are filed under CPC A42B3/16 (Ear protection devices)?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC A42B3/16 growing?
- Publication counts under this code: 8 in 2024 vs 15 in 2025 (latest complete years).