Patents by Inventor Chris M. Harrison

Chris M. Harrison 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: D299719
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: February 7, 1989
    Assignee: Technophone Limited of Ashwood House
    Inventors: Nils E. V. Martensson, Anthony B. Harrup, Mark Powell, Roger Wilkins, Ron Major, Chris M. Harrison, Andrew Homan, Francis Baldry