Patents by Inventor Tik T. Tjan

Tik T. Tjan 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: 4863463
    Abstract: An artificial intra-ocular lens to be substituted for a natural lens which has been clouded by cataract. The lens is designed to be placed in the capsular bag from which the nucleus and cortex of the clouded lens have been removed. According to the invention the lens has a closed ring (3) extending concentrically about an optic component (2). The ring is connected to the periphery of the optic component (2) by means of two arms (4, 4') each extending circumferentially between the optic component (2) and the circumferential ring (3) and being connected to the periphery of the optic component (2) and to the ring (3) by means of arm ends (6, 6') and (5, 5'), respectively. These arm ends extend in fan-shaped configuration perpendicularly to the periphery of the optic component (2) and to the circumferential ring, respectively. Each arm end (6, 6') connected to the periphery of the optic component (2) is offset by an angle of 15.degree.-20.degree.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: September 5, 1989
    Inventor: Tik T. Tjan