Patents by Inventor Mark A. Hetrick

Mark A. Hetrick 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).

  • Operator handle
    Patent number: D957355
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: July 12, 2022
    Assignee: Pella Corporation
    Inventors: Jennifer A. Tuetken, Mark A. Hetrick, William R. Parcells
  • Lock lever
    Patent number: D959955
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: August 9, 2022
    Assignee: Pella Corporation
    Inventors: Jennifer A. Tuetken, Mark A. Hetrick, William R. Parcells