Patents by Inventor John Woronczuk

John Woronczuk 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).

  • Telephone set or similar article
    Patent number: D330201
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: October 13, 1992
    Assignee: Elcombe Systems Limited
    Inventors: Doug Preece, Frances Hardwick, Bevan Schmidt, Andre Danis, John Woronczuk, Michel Marleau