Patents by Inventor Calvin Flederbach

Calvin Flederbach 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).

  • Patent number: D859957
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: September 17, 2019
    Assignee: ERICO INTERNATIONAL CORPORATION
    Inventors: Calvin Flederbach, Michael Liao