hearing aid patents march 2021

US Ear Device Patents for March 2021

A Better Mouse Trap, Revisited   Included in this month’s list is patent #10950211, by Kah. Entitled External ear insert for hearing comprehension enhancement, it appears to be a Helmhotz-type resonating device placed somewhere in the ear to shift natural pinna and canal resonances. Compare this to Goode’s patent #4556122, Ear acoustical hearing aid, which…

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