Patents by Inventor John V. Roberts

John V. Roberts 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).

  • Product distributor
    Patent number: D549755
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: August 28, 2007
    Inventors: Gary W. Wietgrefe, David G. Struxness, Leland J. Erickson, Jarud H. Hoefker, Zachary B. Johnson, Jason M Schwiderski, David J. Gelhar, Jeff A. Schultz, Kevin R. Wald, Todd E. Osman, Jason J. Dehne, John V. Roberts