Patents by Inventor Ronald Wisnia

Ronald Wisnia 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: D308644
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: June 19, 1990
    Assignee: Wedge Innovations
    Inventors: Andrew G. Butler, Ronald Wisnia