Patents by Inventor Nicholas St. John Braithwaite

Nicholas St. John Braithwaite 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).

  • Method and device for measuring an ion flow in a plasma
    Patent number: 5936413
    Abstract: The present invention relates to a method for measuring an ion flow from a plasma to a surface in contact therewith, consisting of measuring the rate of discharge of a measuring capacitor connected between a radiofrequency voltage source and a plate-shaped probe in contact with the plasma.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: August 10, 1999
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Jean-Paul Booth, Nicholas St. John Braithwaite