Patents by Inventor Stephen Craig Petro

Stephen Craig Petro 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).

  • Method of producing coated paper with reduced gloss mottle
    Patent number: 7504002
    Abstract: A method of producing a coated paper having reduced gloss mottle and excellent smoothness includes the steps of calendering a base stock at a relatively high pressure in a first calendering step, coating at least one side of the calendered base stock and calendering the coated base stock at a relatively low pressure in a second calendering step.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: March 17, 2009
    Assignee: Newpage Corporation
    Inventors: Gregg Lee Brelsford, Steven Paul Metzler, Stephen Craig Petro, Stig Renvall, Susanne Lynn Sowers