Patents by Inventor Christian Ritchie

Christian Ritchie 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).

  • Steering wheel
    Patent number: D735099
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 28, 2015
    Assignee: Caterpillar, Inc.
    Inventors: Christian Ritchie, Franz Forster, Bradley Anderson, Niladri Manna
  • Steering wheel
    Patent number: D766147
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 13, 2016
    Assignee: Caterpillar Inc.
    Inventors: Christian Ritchie, Franz Forster, Bradley Anderson, Niladri Manna
  • Key
    Patent number: D781135
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: March 14, 2017
    Assignee: Caterpillar Inc.
    Inventors: Christian Ritchie, Scott Larson, Mark Decou
  • Key
    Patent number: D808247
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: January 23, 2018
    Assignee: Caterpillar Inc.
    Inventors: Christian Ritchie, Scott Larson, Mark Decou
  • Motor grader
    Patent number: D886161
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: June 2, 2020
    Assignee: Caterpillar Inc.
    Inventors: Satish Huliyar, Bradley Boone, Aaron Dunaway, Brad Van De Veer, Christian Ritchie
  • Motor grader
    Patent number: D887453
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: June 16, 2020
    Assignee: Caterpillar Inc.
    Inventors: Satish Huliyar, Sharon Tao, Bradley Boone, Brad Van de Veer, Christian Ritchie