Patents by Inventor Stephan Drews

Stephan Drews 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).

  • Bridge
    Patent number: D844164
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 26, 2019
    Assignees: thyssenkrupp Ag, ThyssenKrupp Steel Europe AG
    Inventors: Andreas Cott, Ingo Rogner, Lothar Patberg, Marcus Rauhut, Erik Hilfrich, Michael Bruggenbrock, Ralf Stegmeyer, Stephan Drews, Thomas Flaskamp
  • Bridge portion
    Patent number: D879323
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 24, 2020
    Assignees: thyssenkrupp AG, ThyssenKrupp Steel Europe AG
    Inventors: Andreas Cott, Ingo Rogner, Lothar Patberg, Marcus Rauhut, Erik Hilfrich, Michael Bruggenbrock, Ralf Stegmeyer, Stephan Drews, Thomas Flaskamp