Patents by Inventor Doyle Friederich

Doyle Friederich 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).

  • Cab interior of a tractor
    Patent number: D943007
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: February 8, 2022
    Assignee: DEERE & COMPANY
    Inventors: Sushanta Das, Michael R. Gratton, Thorsten Hagner, Austin L. Begg, Doyle Friederich, Felix Nagelin, Alberto Mantilla, Anthony J. Baxter, Sebastian Himpel
  • Cab exterior of a tractor
    Patent number: D943010
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: February 8, 2022
    Assignee: DEERE & COMPANY
    Inventors: Sushanta Das, Michael R. Gratton, Thorsten Hagner, Austin L. Begg, Doyle Friederich, Felix Nagelin, Alberto Mantilla, Anthony J. Baxter, Sebastian Himpel