Patents by Inventor Richard Killgren

Richard Killgren 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).

  • Motor grader
    Patent number: D880533
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: April 7, 2020
    Assignee: Guangxi LiuGong Machinery Co., Ltd.
    Inventors: Gary Major, Richard Killgren, Edward Wagner
  • Excavator
    Patent number: D896852
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: September 22, 2020
    Assignee: Guangxi LiuGong Machinery Co., Ltd.
    Inventors: Gary Major, Richard Killgren, James Holmes
  • Excavator
    Patent number: D901553
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 10, 2020
    Assignee: Guanxi LiuGong Machinery Co., Ltd.
    Inventors: Gary Major, Richard Killgren, James Holmes
  • Bulldozer
    Patent number: D922446
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: June 15, 2021
    Assignee: Guangxi LiuGong Machinery Co., Ltd.
    Inventors: Edward Wagner, Gary Major, Richard Killgren, James Holmes
  • Excavator
    Patent number: D941885
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: January 25, 2022
    Assignee: Guangxi LiuGong Machinery Co., Ltd.
    Inventors: Gary Major, Richard Killgren, James Holmes