Patents by Inventor Robert M. Penfield

Robert M. Penfield 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: D668056
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: October 2, 2012
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Robert M. Penfield, Brian K. Muehl, David J. Van Eperen, Michael D. Wishneski