Patents by Inventor Rolf Effertz

Rolf Effertz 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).

  • Screwdriver
    Patent number: D1039932
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: August 27, 2024
    Inventor: Rolf Effertz
  • Screwdriver
    Patent number: D1131153
    Type: Grant
    Filed: April 24, 2024
    Date of Patent: June 23, 2026
    Inventor: Rolf Effertz