Patents by Inventor Andrea Altieri

Andrea Altieri 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).

  • Progressive multifocal contact lens suitable for compensating presbyopia
    Patent number: 6322213
    Abstract: The progression of the optical power of the lens comprises a first tract (a) that descends rapidly to the base dioptric power and in which the lens functions for near vision; a short second tract (b) that remains substantially at the level of the base dioptric power and in which the lens functions for far vision; and a third tract (c) consisting of a first progressively rising part (c′) and a constant second part (c″) and in which the lens functions progressively for intermediate distance in the first part and in a constant manner for near vision in the second part.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: November 27, 2001
    Assignee: Euro Lens Technology S.p.A.
    Inventors: Andrea Altieri, Alessandro Filippo