Patents by Inventor Jean S. Lee

Jean S. Lee 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).

  • Polyester resin-based high index ophthalmic lenses having improved optical uniformity and/or tintability
    Patent number: 5886764
    Abstract: Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: March 23, 1999
    Assignee: Signet Armorlite, Inc.
    Inventors: Thomas J. Engardio, Philip D. Dalsin, Dae Ki Kang, Jean S. Lee
  • Polyester resin-based high index ophthalmic lenses having improved optical uniformity and/or tintability
    Patent number: 5694195
    Abstract: Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: December 2, 1997
    Assignee: Signet Armorlite, Inc.
    Inventors: Thomas J. Engardio, Philip D. Dalsin, Dae Ki Kang, Jean S. Lee