Patents by Inventor Jan G. F. Worst

Jan G. F. Worst 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: 5192319
    Abstract: An intraocular lens surgically positioned in the anterior chamber and to be used in addition to the natural lens to correct the refraction. The lens is fixated by iris stromal support, comprising an optical portion of inner concave and outer convex shape and a side support portion which has one or more pairs of pincerlike extensions for holding a portion of iris tissue. The design provides safe clearance away from the vital structures both anteriorly and posteriorly. This technique of stromal iris support permits full pupil motility. Lack of any postoperative decentration allows the system to be used for myopia, hyperopia, presbyopia or astigmatism. A non-transparent, light-impermeable ring may be incorporated to prevent glare or edge effects. The lens provides high predictability of the precalculated optical power.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: March 9, 1993
    Inventor: Jan G. F. Worst
  • Patent number: 4215440
    Abstract: An iris fixation intraocular lens comprising an optical portion and a side support portion comprising a pair of pincer-like extensions for holding a portion of iris tissue.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: August 5, 1980
    Inventor: Jan G. F. Worst