Patents by Inventor Daniel R. Szortyka

Daniel R. Szortyka 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).

  • Spring retainer
    Patent number: D679732
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 9, 2013
    Assignee: Charter Manufacturing Co., Inc.
    Inventors: James R. Edgar, Daniel R. Szortyka, William V. Howard, John M. Gardner