Patents by Inventor Humphry R. Evatt

Humphry R. Evatt 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).

  • Cryosurgical probe
    Patent number: 4207897
    Abstract: A cryosurgical probe is adapted for the freezing of a nerve and is fitted with an electrode at its tip for electrical stimulation of the nerve, to enable the surgeon to know when the probe tip has been correctly placed in proximity to a particular nerve which it is desired to freeze.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: June 17, 1980
    Assignees: Spembly Limited, John W. Lloyd
    Inventors: John W. Lloyd, David E. Wild, Humphry R. Evatt