Apparatuses, systems, and methods for increasing or manipulating noise attenuation in hearing protection device
US12029628B2 · kind B2 · utility
1Cited by
61References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2019 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Mar 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/162
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A protection cup (100) for a hearing protection device (HPD) and a method for manufacturing a protection cup (100). The protection cup (100) includes a plurality of fractal elements disposed on an inner surface (101) of the protection cup (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.