Inventor

VALNERT BORIS

DK4 patents

Patents

4 patents

US12074352B2Aug 27, 2024

System for refuelling a hearing aid fuel cell

WIDEX AS0 citations56

US12218388B2Feb 4, 2025

Direct alcohol fuel cell

WIDEX AS0 citations55

US12068512B2Aug 20, 2024

Direct alcohol fuel cell

WIDEX AS0 citations55

US12074351B2Aug 27, 2024

Refuelling unit for refuelling fuel cell of hearing aid

WIDEX AS0 citations47