Patents by Inventor Martin Zipkat

Martin Zipkat 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).

  • Fog signal
    Patent number: D894030
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: August 25, 2020
    Inventor: Martin Zipkat
  • Signal light
    Patent number: D916611
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: April 20, 2021
    Assignee: Sabik Offshore GmbH
    Inventors: Martin Zipkat, Morten Haaning Christensen, Marty Friedrich, Michael Schulze