Boris Valnert

4 Patents

• US122183882025

  Direct Alcohol Fuel Cell

  Widex A/S

  0 cites
• US120743512024

  Refuelling Unit for Refuelling Fuel Cell of Hearing Aid

  WIDEX A/S

  0 cites
• US120743522024

  System for Refuelling a Hearing Aid Fuel Cell

  Widex A/S

  0 cites
• US120685122024

  Direct Alcohol Fuel Cell

  Widex A/S

  0 cites