Patents Assigned to Progressive Chemical Research, Ltd.
  • Comfortable, oxygen permeable contact lenses and the manufacture thereof
    Patent number: 4948855
    Abstract: Comfortable, oxygen permeable hard and semi-hard contact lenses are made from the copolymer of ethylenically unsaturated siloxanylalkoxy ester monomer, ethylenically unsaturated fluorocarbon ester monomer and ethylenically unsaturated sulfone monomer; the copolymer plastic can be modified by the incorporation of hardening, stability and wettability agents and methods for the manufacture thereof.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: August 14, 1990
    Assignee: Progressive Chemical Research, Ltd.
    Inventor: Nick N. Novicky
  • Ophthalamic device from fluoro-silicon polymers
    Patent number: 4861850
    Abstract: Comfortable, oxygen permeable hard and semi-hard contact lenses are made from the copolymer of ethylenically unsaturated siloxanylalkoxy ester monomer, ethylenically unsaturated fluorocarbon ester monomer and ethylenically unsaturated sulfone monomer; the copolymer plastic can be modified by the incorporation of hardening, stability and wettability agents and methods for the manufacture thereof.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: August 29, 1989
    Assignee: Progressive Chemical Research, Ltd.
    Inventor: Nick N. Novicky