Patents by Inventor William M. Lichtman

William M. Lichtman 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: 4652099
    Abstract: A scleral ring of hydrophilic material 0.05 to 0.35 millimeters thick is provided with a circular shape about 16 to 25 millimeters in diameter, or a generally elliptical shape approximately 24 to 30 millimeters long and approximately 12 to 18 millimeters in width, also a central portion of about 9 to 15 millimeters in diameter. There is also a peripheral portion disposed about said central portion colored white, whereby the exposed portion of the wearer's sclera is cosmetically treated. The central portion may have an optical center about 5 millimeters in diameter, preferably of optical quality for the correction of vision or clear or removed.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: March 24, 1987
    Inventor: William M. Lichtman