Patents by Inventor Willi Horner

Willi Horner 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).

  • Soft contact lens having toric rear face and rotationally symmetrical front face
    Patent number: 5455641
    Abstract: The soft toric contact lens has a substantially rotationally symmetrical front face optionally having a rotationally symmetrical lenticular construction, and a substantially aspherical, especially ellipsoidal, rear face. The optically active central region of the rear face is toric. Shifting the torus to the central region of the lens rear face results in lenses that are economic to produce, are of wearable thickness and are straightforward to fit.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: October 3, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Christoph Hahne, Peter Hofer, Willi Horner, Martin Reichner