Jan B. Zwierstra

3 Patents

• US123112282025

  System and Method for Kegel Training

  Axena Health, Inc.

  0 cites
• US120050042024

  Headset System

  Neurasignal, Inc.

  0 cites
• US115409672023

  Headset System

  Novasignal Corp.

  0 cites