Patents by Inventor John E. Berry

John E. Berry 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).

  • Refractory block
    Patent number: D567829
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: April 29, 2008
    Assignee: Harbison-Walker Refractories Company
    Inventors: John J. Stephansky, John E. Berry
  • Refractory block
    Patent number: D591778
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: May 5, 2009
    Assignee: Harbison-Walker Refractories Company
    Inventors: John J. Stephansky, John E. Berry