Patents by Inventor Steven J. Choquette

Steven J. Choquette 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).

  • Fabrication of embossed diffractive optics with reusable release agent
    Patent number: 6245412
    Abstract: A method for producing a plastic material containing a diffractive optic pattern therein including embossing a curable plastic material with a diffractive optic pattern by pressing the curable plastic material against a master having a diffractive optic pattern thereon which is coated with a thin layer of a fluorinated silane, having at least one fluorinated alkyl group bonded to an Si atom and at least one alkoxy or halide group bonded to an Si atom, as a release layer. Also, the master coated with the fluorinated silane and cured plastic, particularly epoxy resins, containing diffractive gratings prepared by the method, preferably on a substrate, such as a waveguide.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: June 12, 2001
    Assignee: The United States of America as represented by the Secretary of the Commerce
    Inventors: Steven J. Choquette, Brigitte L. Ramos
  • Fabrication of embossed diffractive optics with reusable release agent
    Patent number: 5861113
    Abstract: A method for producing a plastic material containing a diffractive optic pattern therein including embossing a curable plastic material with a diffractive optic pattern by pressing the curable plastic material against a master having a diffractive optic pattern thereon which is coated with a thin layer of a fluorinated silane, having at least one fluorinated alkyl group bonded to an Si atom and at least one alkoxy or halide group bonded to an Si atom, as a release layer. Also, the master coated with the fluorinated silane and cured plastic, particularly epoxy resins, containing diffractive gratings prepared by the method, preferably on a substrate, such as a waveguide.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: January 19, 1999
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Steven J. Choquette, Brigitte L. Ramos