Patents by Inventor John McNall

John McNall 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: D338492
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: August 17, 1993
    Assignee: Public Computer Systems Incorporated
    Inventors: John McNall, Howard Rooksby