Patents by Inventor Christopher E. Blank

Christopher E. Blank 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).

  • Method for manufacturing hydrophilic contact lenses
    Patent number: 4983332
    Abstract: An improved method for manufacturing contact lenses wherein monomer or comonomer mixture is placed into a mold caivty and subjected to polymerization conditions to form a polymerized shape of desired shape wherein the improvement comprises the inclusion of a release agent in the monomeric mixture wherein said release agent comprises less than about three weight percent of said monomeric mixture and is chosen from a mixture of hydrophilic polymers with lipophilic compounds.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: January 8, 1991
    Assignee: Bausch & Lomb Incorporated
    Inventors: Dennis Hahn, Gary A. Johansson, Dominic V. Ruscio, Christopher E. Blank