Patents by Inventor John F. Wickham

John F. Wickham 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).

  • Portable billing machine
    Patent number: D274823
    Type: Grant
    Filed: February 12, 1984
    Date of Patent: July 24, 1984
    Assignee: Immediate Business Systems plc
    Inventors: Anthony Leach, John F. Wickham
  • Medical monitor
    Patent number: D310120
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: August 21, 1990
    Assignee: Oxford Medical Limited
    Inventors: John F. Wickham, Trevor A. Nunn, Derek S. Jay