Patents by Inventor Sidney Lees

Sidney Lees 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).

  • Periodontal probe
    Patent number: 4250895
    Abstract: An improved periodontal probe to determine accurately the bottom wall surface of periodontal pockets by employing the controlled and monitored flow of gas from the tip of the probe and for permitting a calculation of the depth of the pocket by employing a controlled, slidable movement of the probe and measuring displacement of the probe.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: February 17, 1981
    Assignee: Forsyth Dental Infirmary for Children
    Inventor: Sidney Lees