Patents by Inventor Ruben Keferstein

Ruben Keferstein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wireless charging pad
    Patent number: D883923
    Type: Grant
    Filed: August 12, 2018
    Date of Patent: May 12, 2020
    Assignee: STARTFABRIK GmbH
    Inventor: Ruben Keferstein
  • Speaker base
    Patent number: D1015310
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: February 20, 2024
    Assignee: STARTFABRIK GmbH
    Inventor: Ruben Keferstein