Patent · US Active

Canal hearing devices with sound port contaminant guards

US11638108B2 · kind B2 · utility

0Cited by

31References

16Claims

0Family size

Assignee

Sonova AG

Inventors

Frank Wang · San Bruno, US
Michael Au · Fremont, US
Yashvant Venkatakrishnan · San Jose, US
Xiuming Zhu · San Jose, US
Roland Kern · Wolfhausen, CH
Simone Kneipp · Munich, DE
Paul Wagner · Meilen, CH

Key dates

Filing date	Nov 27, 2020
Grant date	Apr 25, 2023
Priority date	—
Expiry date	Dec 30, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2225/025
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A hearing device including a housing, a receiver within the housing, and a contaminant guard having a guard sound port and one or both of an outer contaminant receptacle, which is located outward of the guard sound port and that extends around the guard sound port, and an inner contaminant receptacle, which that is located on the central axis of the guard sound port and operably connected to a location outward of the guard sound port.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.