Patents by Inventor Joonsup Park

Joonsup Park 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).

  • Hydrogel compositions using p-(2-hydroxyhexafluoroisopropyl) styrene as a comonomer
    Patent number: 4640965
    Abstract: Hydrogel compositions characterized by a copolymer composition which includes a hydroxyfluoroalkylstyrene as a comonomer. The preferred comonomer compound is p-(2-hydroxyhexafluoroisopropyl)-styrene [HFIS].
    Type: Grant
    Filed: January 7, 1986
    Date of Patent: February 3, 1987
    Assignee: Alcon Laboratories, Inc.
    Inventors: Joseph J. Falcetta, Joonsup Park
  • Siloxane monomers for ophthalmic applications
    Patent number: 4633003
    Abstract: Novel colorless siloxane monomers containing both an aromatic ring and vinyl functionality are employed as a monomer for preparing copolymers that are ophthalmically useful. The monomer has good oxygen permeability, allows preparation of copolymers that have good machineability, and is easily wettable. Moreover, because of its compatability with other copolymers it can be useful to make a wide variety of types of lenses including hard and soft, and ocular implants as well.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: December 30, 1986
    Assignee: Alcon Laboratories, Inc.
    Inventors: Joseph J. Falcetta, Joonsup Park