Patents by Inventor Ronald L. Sopko

Ronald L. Sopko 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).

  • Timed monthly appointment leaf
    Patent number: D524861
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: July 11, 2006
    Assignee: MeadWestvaco Corporation
    Inventor: Ronald L. Sopko
  • Timed monthly desk calendar page
    Patent number: D526017
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: August 1, 2006
    Assignee: Meadwestvaco Corporation
    Inventor: Ronald L. Sopko