Patents by Inventor Leonard E. Neiswander

Leonard E. Neiswander 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 apparatus for eye glasses position measurement system and/or for vertex measurement system
    Patent number: 5088203
    Abstract: An eyeglasses measuring system comprises a fixed light source which projects a light beam onto two reflecting mirrors. The reflecting mirrors split the light beam into two separate light beams. One of the beams is positioned so that it tangentially illuminates the patient's cornea. A target mirror is then moved, by turning an adjustment screw. This adjustment positions the projection path of the second light beam tangentially onto the front surface of the patient's eyeglasses. The distance between the two beams of light is then determined by reading a scale.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: February 18, 1992
    Inventor: Leonard E. Neiswander