Patents by Inventor Kerim Yasan Arda

Kerim Yasan Arda 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).

  • Process for making a mold piece having a main curved surface bearing a utilitary microstructure
    Patent number: 7520972
    Abstract: A process for making a mould piece having a main curved surface bearing an utilitary microstructure which comprises transferring a utilitary microstructure from a master piece main surface to a main surface of a flat cured elastomeric film; pressing the cured elastomeric film and a master article against each other so as to conform the overall shape of said cured elastomeric film to the curved shape of the main surface of the master article and to spread over a curable coating composition between the curved main surface of the master article and the main surface bearing the replica of the said utilitary microstructure of the cured elastomeric film; curing the coating composition; removing the cured elastomeric film and depositing a layer of a metal or a metallic alloy on the exposed main surface of the hard coating of the master article; and recovering said metal or metallic alloy layer to obtain a mould piece having a curved main surface bearing a replica of said transferred utilitary microstructure.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: April 21, 2009
    Assignee: Essilor International
    Inventors: Gerhard Keller, Mary Jane New, Kerim Yasan Arda, Philip John Rawlins, Allan Carmichael